 Model Number  
Type 
Length 
Material 
Front 
Back 
Dates 
Comment 
Catalog Number and Name
Names in italics actually appear on the rule.
Other names are common usage or taken from catalogs.
Post brand slide rules are usually labeled with model number and the Post trademark or Frederick Post Co. 
Type:
Mannheim Duplex Simplex Circular Etc.
Simplex means a duplex rule that has no calculating scales on the backs of the stators. 
Nominal Length in Inches
(Most 10inch slide rules have scales that are actually 250 mm longslightly shorter than 10 inches.) 
What the rule is made of, such as wood, plastic, unobtanium, etc. 
Scales on Front
For mannheim rules only, this also includes any measuring scale on top edge set off with // or . 'cm //' indicates a centimeter scale on a slanted surface; '0 ' indicates a vertical surface with no scale. 
Scales on Back
For mannheim rules only, this also includes any measuring scale on bottom edge set off with // or .
Measuring scales are given wherever they are known. If nothing is shown, scale is not known. 
Our guess about when the rule was made or available. If we have only one reference, that date is given. 
Other interesting information such as original catalog price, what rule it was made from, or is similar to, etc. 
1450
Post Mannheim Adjustable

Mannheim 
20 
Celluloid Mahogany 
in // A [B, C] D 
[S, L T] // cm 
1925  31 
10inch 1449. FaberCastell. $16.80 in 1927. 
1450
Post Student Mannheim (C cursor)

Mannheim 
20 
Celluloid Bamboo 
in // A [B, C] D 
[S, L, T] 
1936  WW II 
20inch 1449. Hemmi 70? 
1450
Post Versatrig

Duplex 
10 
Celluloid Bamboo 
K, DF [CF, CIF, CI, C] D, R1, R2 
L, A [T T, Sec T ST, Cos, S, C] D, DI 
1951+ 
Hemmi. $16.75 in 1969. 
1450DP
Post Projection Versatrig

Duplex 
10 
Acrylic 
K, DF [CF, CIF, CI, C] D, R1, R2 
L, A [T T, Sec T ST, Cos, S, C] D, DI 
1969 
Overhead Projectors. Hemmi. 
1451
Post Universal (C Cursor)

Mannheim 
5 
Celluloid Bamboo 
in // A [B, CI, C] D, K 
[S, L, T] 
1936  WW II 
5inch 1452. Hemmi 34RK. 
1451
Post Pocket Versatrig

Duplex 
5 
Celluloid Bamboo 
K, DF [CF, CIF, CI, C] D, R1, R2 
L, A [T T, Sec T ST, Cos, S, C] D, DI 
c.1957 + 
5inch 1450. Hemmi. 
1452
Post Multiphase Mannheim

Mannheim 
10 
Celluloid Mahogany 
10 in // A [B, CI, C] D, K 
[S, L, T]  26 cm 
1925  31 
Catalog shows rimless indicator w 3 hairlines but sample is aluminum w 1 hairline. Faber. 
1452
Post Universal

Mannheim 
10 
Celluloid Bamboo 
10 in // A [B, CI, C] D, K 
[S, L, T]  28 cm 
1932  c. 1963 
Hemmi 50. C cursor until 1937. $6.25 in 1932. 
1452T
Post Extra Thin Universal

Mannheim 
10 
Celluloid Bamboo 
10 in // A [B, CI, C] D, K 
[S, L, T]  28cm 
1940 
Hemmi. 
1452W
Post Universal

Mannheim 
10 
Celluloid Bamboo 
10 in // A [B, CI, C] D, K 
[S, L, T]  27 cm 
c. 1956+ 
Hemmi 50W. 6mm wider than old 1452. 
1452D
Post Universal

Mannheim 
10 
Celluloid Wood 
10 in // A [B, CI, C] D, K 
[S, L, T] // 25 cm 
WWII 
CharvozRoos SR1074. $3.50 in 1944. 
1452P
Post Plastic

Mannheim 
10 
Plastic 
10 in // A [B, CI, C] D, K 
[S, L, T] // 25 cm 
WWII 
Bruning 2420 w Post, Bruning or Hemmi plain cursor or Hemmi magnifiying cursor. 
1452
Post Plastic Variant: No make or model number, only Made in U.S.A.

Mannheim 
10 
Plastic 
10 in // A [B, CI, C] D, K 
[S, L, T] // 25 cm 
WWII 
Same as above. Post case and cursor. $3.25 in 1945. 
1453
Post Universal Extra Fine

Mannheim 
5 
Celluloid Bamboo 
in // A [B, CI, C] D, K 
[S, L, T]  cm 
1936  WW II 
Magnifier & extrafine divisions. Hemmi. 
1454
Post Multiphase Mannheim

Mannheim 
20 
Celluloid Mahogany 
in // A [B, CI, C] D, K 
[S, L, T]  cm 
1925  31 
FaberCastell. $19.20 in 1927. 
1454
Post Universal (C Cursor)

Mannheim 
20 
Celluloid Bamboo 
in // A [B, CI, C] D, K 
[S, L, T] 
1936  WW II 
20inch 1452. Hemmi 70. 
1455
Post Universal (C cursor)

Mannheim 
10 
Celluloid Bamboo 
10 in // A, DF [CF, CI, C] D, K 
[S, L, T] 
1936  WW II 
Catalog text says bottom scale is K but illustration shows L. Hemmi. 
1456
Post Electrical

Mannheim 
10 
Celluloid Mahogany 
in // LL2, A [B, C] D, LL3 
[S, L, T] // cm. Dynamo and motor efficiency scales in gutter. 
1925  31 
Same as FaberCastell 378. $9.30 in 1927. 
1456
Post Electrical

Mannheim 
10 
Celluloid Bamboo 
10 in // LL2, A [B, CI, C] D, LL3 
[S, L, T] Dyn/Motor scale in gutter? 
1932  WW II 
Hemmi 80. C cursor until 1937. $7.75 in 1932. 
1457
Post MannheimTrig

Simplex 
10 
Celluloid Wood 
T, DF [CF, CIF, C] D, S, ST 
[B, K, L, C] 
WWII 
CharvozRoos SR109. 1462 without scales on backs of stators. 
1458
Post Multiphase Duplex

Duplex 
10 
Celluloid Mahogany 
DF [CF, CIF, C] D 

1925  27 
FaberCastell. $10.20. First Post duplex. 
1458
Post Universal Duplex

Duplex 
10 
Celluloid Bamboo 
DF [CF, CI, C] D 
K, A, [B, S, T, CI] D, L 
1932  WW II 
Hemmi 150. 
1459
Post Universal Log Log Duplex

Duplex 
10 
Celluloid Bamboo 
K, A [B, CI, C] D, T 
Q, R_{q}, P, [Q, Q', C] LL3, LL2, LL1

1932  WW II 
Model number may not appear on rule. Hemmi 152. $12.00 in 1932. 