| Reference Number: Avaluer:4669958 | Country/Region of Manufacture: United States |
| Featured Refinements: Pocket Slide Rule |
Vintage Keuffel And Esser Pocket Slide Rule 4181 - 1 Black Leather Case
Vintage Keuffel And Esser Pocket Slide Rule
Vintage Keuffel And Esser Co. Slide Ruler Model 68 - 1210 With Leather Case
Vintage K&e Keuffel And Esser 4133 Slide Rule W/ Leather Case
Antique 1900 4031 Keuffel And Esser 5 " Slide Rule With Leather Snap Case
Vtg Keuffel And Esser Beginners Slide Rule N4058w
Vintage Keuffel And Esser Co. Slide Drafting Ruler 20in W/ Leather Carrying Case
Keuffel And Esser Beginners Slide Rule N4058w K&e Made In Usa W/ Case
Stanley Great Turnstile London England Fuller Calculator Spiral Slide Rule
Stanley Great Turnstile London England Fuller Calculator Spiral Slide Rule
Retro Calculator: Vintage Charpentier Calculimetre Multidisc Circular Slide Rule
The Sheppard Duodecimal Cubing Slide Rule By W. F. Stanley
Verlag Chemie Faber Castell Slide Rule. Rechenschieber. Rare.
Rare Calculimetre G. Charpentier Brevete S. G. D. G Circa 1882 Circular Slide Rule
Rrrrare Circular Slide Rule Calculimetre Charpentier Type 2 With Leather Pouch
Vintage Boiler Efficiency Calculator Gas Slide Rule Graphic Calculator Co