Name | Keuffel & Esser < 4053 > Polyphase Slide Rule, Mannheim Adjustable |
Front Scales | 10inch / A = B CI C = D K ] 25cm |
Back Scales | = S L T = |
Type of Rule | slide rule |
Material | Engine divided celluloid laminated mahogany |
Dimension (mm) | |
Area of Use | generic |
Origin of Rule | Michael O'Leary |
Match Number | 4094
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