KEUFFEK AND ESSER SLIDERULE, COPYRIGHT 1947

Description

THIS IS AN OLD KEUFFEL AND ESSER 10" 'DOUBLE SIDED' (12" OVERALL) SLIDERULE, COPYRIGHTED 1947...IT HAS DUPLEX DECITRIG WRITTEN ON THE SKINNY SIDE AND THE DATE AND A PATENT NUMBER...IT HAS A HEAVY LEATHER CASE, THE K/E INITIALS ON THE CLOSER FLAP AND THE SECOND PICTURE SHOWING IT IS ALL THE SAME SHADE, THE DARK AREA MUST BE FROM THE LIGHT GETTING IN AT THE SIDE OF THE SCANNER....IT HAS BEEN USED OFTEN AND HAS SOME DISCOLORED AREAS ON THE EDGES....IT APPEARS TO BE OVER 70 YEARS OLD...THE PLASTIC SKINNY EDGES ON THE CLEAR SLIDE THING HAS SOME DISCORATION AND SOME PLASTIC MISSING...THE SLIDERULE ITSELF IS FINE..INSURANCE AND SHIPPING IS FREE