This is a rare variation to the earlier normal number 64 slide rule. This 64T version has 3 scales extra and comes complete with it’s cardboard container. This slide rule and case are made in Japan by Sun Hemmi probably specially made for the Dutch market (like the later model 642T that was cobranded “Arend” It has scales on both sides of the slider and the metal curser with glass insert has 3 hairlines from top to bottom. Slide rule and curser are complete and everything is in very good condition with some pen to the top (metric) ruler. Cardboard container is also complete with some scuffs. It measures ca. 29,5 cm or 11 3/4 inches. Check out the attached video on how to operate a vintage slide rule!
Sun Hemmi 64T Slide rule case Japan 1960
Sun Hemmi 64T Slide rule with cardboard case, made in Japan ca. 1960
1 in stock