SUN HEMMI No. 255 SLIDE RULE RULER W/CASE

Aristo MultiLog Nr.0970 CHARVOZ Engineer Slide Rule w/ Leather Case

Vintage Post Hemmi No. 1491 Slide Rule With Leather Case

Very nice SUN HEMMI No. 153 Bamboo Duplex Slide Rule, vintage circa 1933 - 1942.

Vintage Aristo / Charvoz No. 0970 Slide Rule with Leather Case – Made in Germany

Vintage Pickett Model 400 Slide Rule Saddle Leather Case 1950's Chicago USA

Prophet On Selling Price — a Circular Slide Rule (Vintage and Collectible)

Aristo Slide Rule Bird Electronic Corporation Case & Original Box