USD $120
12″/10″ Full Size Aristo Multilog Slide Rule.
One of Aristo’s high end professional rules, very popular in Europe. This rule has a plastic body, with filled and engraved black and red scales, metal end-braces (as opposed to the plastic braces with rubber padded feet), with yellow accent stripes (a bit faded) on reference scales, plus scales are self-documenting on right hand side. Has the Rietz over-range scale extensions, plus anti-skid bottom bumpers, and 6 line cursor. Includes Log Log, folded and DI scales.
These are used rules, with the rules being in very good condition, and the cases being in poor condition (marking, wear, stains, etc).
(24 scales, 6 cursor lines)
Front – LL00, K, A, [ B, T, ST, S, C, ] D, DI, LL0
Back – LL01, LL02, LL03, DF,[ CF, CIF, L, CI, C, ] D, LL3, LL2, LL1
Stock: 3
USD $175
A pocket rule meant for electrical engineers, that features transparent rulers on the upper and lower edges, red/black scales, and two scales specialized scales for electrical engineering. This rule also features metric and imperial rulers on the reverse side, which is an unusual innovation for more complex duplex rules.
(13 scales, 2 cursor lines, 2 rulers)
Front – K, A, B, [BI, CI, C] D, D/M, V
Back – ]S, ST, L, T]
Stock: 1
USD $125
A simple, but powerful, pocket rule from the MultiTrig series, featuring red/black scales, and the standard Aristo yellow accent coloring on the rule body stators. This rule also features metric and imperial rulers on the reverse side, which is an unusual innovation for more complex duplex rules.
(16 Scales, 4 Cursor Lines)
Front – K, DF, [CF, CIF, CI, C] D, L
Back – P, A, [B, T, ST, S, C] D, DI + 2 rulers on upper/lower edge
Stock: 1
USD $125
12″/10″ Full Size Aristo Darmstadt Slide Rule.
One of Aristo’s high end simplex rules, very popular in Europe. This rule has an engineering plastic body, with filled and engraved black and red scales, plus scales are self-documenting on right hand side. Has the Rietz over-range scale extensions, plus 4 line cursor. Includes Log Log, Pythagorean (P) and BI scales.
A classic Aristo design and beautifully thought out rule, all pieces are in excellent condition.
(14 scales, 1 ruler, 4 cursor lines)
Front – cm/ K, A, [ B, BI, CI, C, ] D, P, S, T
Back – [ L, LL3, LL2, LL1 ]
Stock: 6
USD $85
The Model 99 is a more basic student rule designed for beginners and more non-exhaustive use that doesn’t require advanced trig scales. Features engraved and filled black/red scales, an all plastic body, and four cursor lines.
(10 Scales, 4 Cursor Lines, 2 rulers)
Front – K, A, [B, CI, C] D, L, imperial ruler
Back – [S, ST, T], metric ruler
Stock: 2
USD $110
A spectacularly well designed rule for commerce and accounting. Featuring red/black scales, anti-slip rubber feet on the reverse side, and red-scaled transparent rulers on the upper and lower edges.
Includes case, manual, and support rule (Aristo 1361) with conversion factors.
(14 Scales)
Front – KZ, T2, [P2, P1, T1, Z] M, £, s/d
Back – [ZZ3, ZZ2, ZZ1, ZZ%, T1]
Stock: 3
USD $149
12″/10″ Full Size Aristo Multilog Slide Rule.
One of Aristo’s high end professional rules, very popular in Europe. This rule has an engineering plastic body, with filled and engraved black and red scales, with yellow accent stripes (a bit faded) on reference scales, plus scales are self-documenting on right hand side. Has the Rietz over-range scale extensions, plus anti-skid bottom bumpers, and 6 line cursor. Includes Log Log, folded and DI scales.
A classic Aristo design and beautifully thought out rule.
(Incredible 24 scales! 6 cursor lines)
Front – LL00, K, A, [ B, T, ST, S, C, ] D, DI, LL0
Back – LL01, LL02, LL03, DF,[ CF, CIF, L, CI, C, ] D, LL3, LL2, LL1
Stock: 1
USD $85
Later production example of this advance MultiTrig rule, featuring red/black scales, and the standard Aristo yellow accent coloring on the rule body stators that run the full length of the rue rule. This example does not feature the rubber stand-off feet on either side, but does include two support rules featuring metric and imperial rulers, and conversion factors.
(17 Scales + 4 Cursor Lines)
Front – K, DF, [CF, CIF, CI, C] D, L
Back – P, A, [B, T, ST, S, C] D, DI
Stock: 1
USD $75
An excellent example of the MultiTrig series, featuring red/black scales, rubber stand-off feet on both sides, and the standard Aristo yellow accent coloring on the rule body stators.
Includes a set of Aristo slide rule stands. A very functional and attractive full size rule for advanced users.
(17 Scales + 4 Cursor Lines)
Front – K, DF, [CF, CIF, CI, C] D, L
Back – P, A, [B, T, ST, S, C] D, DI
Stock: 1
USD $210
NEW, Factory Boxed Set, including box, case, rule, and manual (English). The rule has a 4 line cursor, plus two color (red/black) scale markings with yellow accent coloring on the rule body stators. A very functional and attractive full size rule for advanced users.
(23 Scales + 4 Cursor Lines)
Front – ST, T1, T2, DF, [CF, CIF, CI, C], D, P, S
Back – LL01, LL02, LL03, A, [B, L, K, C] D, LL3, LL2, LL1
Stock: 8
USD $65
6″/5″ Scholar Slide Rule
NEW, Factory Boxed Set Excellent pocket Trig rule set with leather case. The rule has a 4 line slightly magnifying cursor, plus two color (red/black) scale markings with yellow accent coloring on the rule body stators. Self-documenting on the right hand side. A very functional and attractive trig rule set. The back is blank. Includes box, leather case, inspection tag, original manual (Spanish) and we include an English reprint.
(10 Scales + 4 Cursor Lines)
Front – L, K, A, [ B, CI, C, ] D, S, ST, T
Back – BLANK
Stock: 43
USD $49
This unusual Aristo rule is used for calculating thermal radiation based on the absolute temperature of a black body and its total radiation. Includes the original instructions (in German).
Stock: 1
USD $310
5.5″ Circular Aviation Slide Rule
Constructed with one rotating film disk, and rotating cursor on each side. A very sophisticated and beautiful flight computer for doing altitude, pressure, wind drift, time, temperature, and fuel problems. The 617 features an additional rotating wind arrow on the back face, not present on other models.
The rule gives simultaneous solutions in both metric and US/Imperial units, without being cluttered or hard to interpret, an outstanding mechanical and artistic design. Still in demand today among many pilots, but very hard to find.
Made of ‘Aristopal’, comes complete with zippered leather pouch. Comes with the original English manual and leather case (case has some wear and seam pulling).
(22 scales on front, Wind scales on rear)
Stock: 1
USD $85
This is a very minimalist circular pocket rule that looks to have only three scales, with a concentrically mounted rotating scale and adjustable cursor. Appears to be for doing multiplication and division, as well as percentages.
Stock: 1
USD $265
5.5″ Circular Aviation Slide Rule
Constructed with one rotating film disk, and rotating cursor on each side. A very sophisticated and beautiful flight computer for doing altitude, pressure, time, temperature, and fuel problems.
The rule give simultaneous solutions in both metric and US/Imperial units, without being cluttered or hard to interpret, an outstanding mechanical and artistic design. Still in demand today among many pilots, but very hard to find.
Made of ‘Aristopal’, comes complete with zippered leather pouch, reprint English manual, and original German manual.
Stock: 1
USD $245
5.5″ Circular Aviation Slide Rule
Constructed with one rotating film disk, and rotating cursor on each side. A very sophisticated and beautiful flight computer for doing altitude, pressure, wind drift, time, temperature, and fuel problems. The 617 features an additional rotating wind arrow on the back face, not present on other models.
The rule gives simultaneous solutions in both metric and US/Imperial units, without being cluttered or hard to interpret, an outstanding mechanical and artistic design. Still in demand today among many pilots, but very hard to find.
Made of ‘Aristopal’, comes complete with zippered leather pouch. Comes with an English manual reprint, and original German language manual.
(22 scales on front, Wind scales on rear)
Stock: 1
USD $285
5.5″ Circular Aviation Slide Rule
Constructed with one rotating film disk, and rotating cursor on each side. A very sophisticated and beautiful flight computer for doing altitude, pressure, wind drift, time, temperature, and fuel problems.
The rule gives simultaneous solutions in both metric and US/Imperial units, without being cluttered or hard to interpret, an outstanding mechanical and artistic design. Still in demand today among many pilots, but very hard to find.
Made of ‘Aristopal’, comes complete with zippered leather pouch. This rule is in excellent condition, and the case is in fair condition (some scuffs/marking). The similar 617 has an additional rotating wind arrow on the back face, not present on these models. Comes with an English manual reprint, and original German manual.
(22 scales on front, Wind scales on rear)
Stock: 1
USD $49
12″/10″ Scholar Slide Rule
NEW factory boxed sets, with 2 part plastic case, 100 Year Anniversary boxes, and even the inspection slip inside. The rule has a 4 line slightly magnifying cursor, plus two color (red/black) scale markings and scales are self-documenting on the right hand side. A very functional and attractive trig rule set, with a bonus top edge cm ruler. The back is blank, but the slide reverse has S, ST and T trig scales.. Includes box, 2-part case, and basic English reprint, because manuals were not included.
(10 Scales + cm Ruler)
Front – cm/ A, [ B, CI, C, ] D, L, K
Back – [ S, ST, T ]
Stock: 6
USD $65
An excellent student and beginner simplex/Manheim rule, featuring Aristo’s yellow contrast scales, and and black and red scale markings. Comes with case, rule, and manual. Rules are in new condition.
(8 Scales, 4 cursor lines)
Front – DF, [CF, CIF, CI, C], D, A, K
Back – Blank
Stock: 6
USD $79
A slightly more advanced beginner rule with more scales and cursor marking (featuring Aristo’s yellow contrast scales, and red/black scale markings), despite being a simplex/Manheim rule this is still a very capable rule. Includes the original case, signs of wear on some of the scales, age discoloration.
(13 Scales, 4 cursor lines)
Front – L, K, A, [B, CI, C], D, S, ST, T
Back – [ S, LL2, LL3], rulers
Stock: 3
USD $89
A slightly more advanced beginner rule with more scales and cursor marking (featuring Aristo’s yellow contrast scales, and red/black scale markings), despite being a simplex/Manheim rule this is still a very capable rule. Includes the original factory box in good condition, case, and manual. New in box rule.
(13 Scales, 4 cursor lines)
Front – L, K, A, [B, CI, C], D, S, ST, T
Back – [ S, LL2, LL3]
Stock: 2
USD $75
An excellent student and beginner simplex/Manheim rule, featuring Aristo’s yellow contrast scales, and and black and red scale markings. Comes in the original factory box still in excellent condition, case, rule, manual, and warranty card. new in box rule.
(8 Scales, 4 cursor lines)
Front – DF, [CF, CIF, CI, C], D, A, K
Back – Blank
Stock: 1
USD $195
12″/10″ Full Size Aristo HyperboLog Slide Rule.
This rule has an engineering plastic body, with filled and engraved black and red scales, with yellow accent stripes (a bit faded) on reference scales, plus scales are self-documenting on right hand side. Has the Rietz over-range scale extensions, plus anti-skid bottom bumpers, and 5 line cursor. Includes Log Log, folded and DI scales. out rule.
Includes two part plastic case that has been enclosed with some form of protective cover, and original support gudte.
(25 scales!, 5 cursor lines)
Front – LL01, LL02, LL03, DF, [CF, CIF, L, CI, C], D, LL3, LL2, LL1
Back – Th, K, A, [B, T, ST, S, C], D, DI, Sh2, Sh1
Stock: 1
USD $169
12″/10″ Full Size Aristo Multilog Slide Rule.
One of Aristo’s high end professional rules, very popular in Europe. This rule has an engineering plastic body, with filled and engraved black and red scales, yellow accent stripes on reference scales, plus scales are self-documenting on right hand side. Has the Rietz over-range scale extensions, plus anti-skid bottom bumpers, and 6 line cursor. Includes Log Log, folded and DI scales. Comes with
Set includes the rule, original leather case (some warping and drying in the leather), and instruction manual.
(24 Scales)
Front – LL00, K, A, [ B, T, ST, S, C, ] D, DI, LL0
Back – LL01, LL02, LL03, DF,[ CF, CIF, L, CI, C, ] D, LL3, LL2, LL1
Stock: 2
USD $69
A robust and beautiful pocket rule combining a white plastic body, and transparent rulers along the upper (metric) and lower (imperial) edges of the rule. This specific rule was produced for Grace & Davison Chemical, and includes the original branded case.
(14 Scales + 2 rulers)
Front – K, A,[B, BI, CI, C], D, P, S, T
Back – [ L, LL1, LL2, LL3 ]
Stock: 1
USD $69
11 scale full-size rule, with original instruction manual. Some writing on reverse side of rule, but otherwise in excellent condition.
(11 scales)
Front – L, K, A, B, DI, CI, C, D, S, ST, T
Back – Blank
Stock: 3
USD $215
Comprehensive rule with 25 scales, in excellent condition.
( 25 Scales, 6 cursor lines)
Front – Th, K, A, B, T, ST, S, C, D, DI, SH2, SH1
Back – LL01, LL02, LL03, DF, CF, CIF, L, CI, C, D, LL3, LL2, LL1
Stock: 1
USD $125
5.5″ Circular Aviation Slide Rule
Constructed with one rotating film disk, and rotating cursor on each side. A very sophisticated and beautiful flight computer for doing altitude, pressure, wind drift, time, temperature, and fuel problems.
The rule gives simultaneous solutions in both metric and US/Imperial units, without being cluttered or hard to interpret, an outstanding mechanical and artistic design. Still in demand today among many pilots, but very hard to find.
Made of ‘Aristopal’, comes complete with zippered leather pouch. We have had many requests for this rule from all over the world, this set is in very good condtion, except for a few case scuffs.
Stock: 1
USD $275
5.5″ Circular Aviation Slide Rule
Constructed with one rotating film disk, and rotating cursor on each side. A very sophisticated and beautiful flight computer for doing altitude, pressure, wind drift, time, temperature, and fuel problems.
The rule gives simultaneous solutions in both metric and US/Imperial units, without being cluttered or hard to interpret, an outstanding mechanical and artistic design. Still in demand today among many pilots, but very hard to find.
Made of ‘Aristopal’, comes complete with zippered leather pouch. We have had many requests for this rule from all over the world, this are the first 618’s we have ever had available for sale, all in excellent condition. The similar 617 has an additional rotating wind arrow on the back face, not present on these models. The earlier 616 does not have the red reciprocal degrees printed on the rear compass rose, or the wind arrow.
(22 scales on front, Wind scales on rear)
Stock: 1
USD $255
5.5″ Circular Aviation Slide Rule
Constructed with one rotating film disk, and rotating cursor on each side. A very sophisticated and beautiful flight computer for doing altitude, pressure, time, temperature, and fuel problems.
The rule give simultaneous solutions in both metric and US/Imperial units, without being cluttered or hard to interpret, an outstanding mechanical and artistic design. Still in demand today among many pilots, but very hard to find.
Made of ‘Aristopal’, comes complete with zippered leather pouch.
Stock: 1
USD $120
Aristo / Charvoz – MultiLog 0970 Full Size
(24 Scales, 5 Cursor Lines)
Front – LL01, LL02, LL03, DF, CF, CIF, L, CI, C, C, LL3, LL2, LL1
Back – LL00, K, A, B, T, ST, S, C, D, DI, LL0
Stock: 2
USD $49
This is an advance 24 scale rule, that features feet on both sides of the rule for easy desktop use, and a cursor with 6 markers. As with most Aristo rules, it comes with black and red scales, as well as yellow bands on the slide for easier reading.
This rule has pronounced discoloration on both sides, but is still in very usable condition.
Scales include:
Front – LL01, LL02, LL03, DF, CF, CIF, L, CI, C, D, LL3, LL2, LL1
Reverse – LL00, K, A, B, T, ST, S, C, D, DI, LL0
Stock: 1
USD $69
This single sided rule is suitable for the mathematician on the go and features clear plastic edging on the upper and lower ruler edges with imperial and metric rulers.
Available with either Grace Davison case or the Sphere clip case.
Scales include:
Front – X, XZ, X2, X3, X 2/Z, 1/X, SIN, TG, ROOT (1-X2), LGX, E^X, E^0.1X, E^0.01X
Back – Blank
Stock: 1
Sphere Research Corporation