Antique Slide Rule Keuffel and Esser N4043-3 Murano_Venini_vase A rare transistor radio by

A rare transistor radio by Omegas

An antique leather wallet is offered

Mid-20th century materia medica text

In very good condition with little evidence of wear

Dedicated to Theodore Roosevelt

Antique Slide Rule Keuffel and Esser N4043-3 Murano_Venini_vase A rare transistor radio byThis is a vintage Keuffel and Esser Slide Ruler, model N4043 3. Circa 1940s 1950s, the 10" slide rule was constructed on a mahogany wood frame with a celluloid overlay laminated surface. The rule is in good condition with graphic darkening on reverse. The metal rimmed cursor has no chips or scratches. The black leather case is included, Rule Details: Made in U. S. A. by Keuffel & Esser Co., New York Patents listed on stock: 1,934,232; on cursor: