Sun Hemmi 136 Darmstadt pocket slide rule decal sleeve 1960 Japan

High quality pocket slide rule by Sun Hemmi from Japan. This is the model 136 from the 1960’s in bamboo. This pocket version has a partial metal cursor, embossed with Sun Hemmi and Japan, it also has a small cursor for the side scales.. The Hemmi logo is embossed in the original leather sleeve as well and clearly marked on the back, there is also a small decal on the sleeve with the model number. The sleeve and rule are in very good condition with only small signs of use and age. It measures 18 cm or 7 inches long (a bit longer than the Hemmi 135 Darmstadt). Check the attached video on how to work your vintage man tool : slide rule operation instructions!