Official Sterling Slide Rule Triangular Scale Advertising Ruler Lot of 15

Description

This lot includes 15 pieces.
Official 10 inch Precision Slide Rule Basic Mannheim, still packaged
Sterling 10 inch slide rule all Mannheim, still packaged
Compass No. 1330 Triangular Scale
Sans & Streiffe Triangular Scale
Pocket slide rule with United States Gypsum ad
Pocket slide rule No. 27
Sterling pocket slide rule No. 587
Frederick Post slide rule No. 1446 "Sun" Hemmi
6 inch Orions Super Straight Rule
6 inch ruler with Mech-Lock Co ad
7 inch ruler with Equipto ad
Circle scale with Central Foundry ad
8 inch ruler with Reid Tool Supply ad
7 inch ruler with KMart Pharmacy ad
12 inch wood ruler with Foglesong Funeral Home ad