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person:
Amy VanderLaan
person:
Murray Shaw
2024.39.4
Instructions for the use of Fowler's Magnum Long Scale Calculator
2024.39.7
Instructions for The Binary Slide Rule
2024.39.23
Directions for the Operation of the Gem Adding Machine
2024.39.24
Guarantee for the Gem Adding Machine
2024.39.25
Decimal Equivalents for the Gem Adding Machine
2024.39.28
Directions for the Operation of the Golder Gem Adding Machine
2024.39.29
Guarantee for the Golden Gem Model 15
2024.39.30
Important! Slip for the Golden Gem Model 15
2024.39.31
Golden Gem Order Form
2024.39.34
Directions for Using Thatcher's Calculating Instrument
2024.39.37
Merchant's Slide Rule 4094 and Desk Slide Rules N4096 & 4096M
2024.39.41
Baby Calculator Flyer
2024.39.42
Baby Calculator Instructions
2024.39.43
Baby Calculator Directions
2024.39.45
Abacus Guide Book
2024.39.47
How to use Soroban
2024.39.57
Directions For Use of the Addometer
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