Keuffell&Esser 4054



Front without slide

Back of the slide


Length 26 cm
Number of scales 9
Country of origin UK
Country of manufacturing USA
Year of manufacturing 1925?
Status of the slide rule Normal signs of use
Material of the slide rule Celluloid on wood
Type of cursor Metal with glass
Status of the box Heavily damaged
Status of the manual None
Collection number 10
Further comments  



 Last updated: 04-09-2009