Case for 10 inch Aristo Studio sliderule
Case for 10-inch Aristo-Studio slide-rule, with a measuring scale, a conversion table and book of instructions
Aristo-Studio slide-rule, 10-inch, in plastic case with a measuring scale, a conversion table and book of instructions by Dennert and Pape, Hamburg, Germany,1964.
Case for 10-inch Aristo-Studio slide-rule, with a measuring scale, a conversion table and book of instructions
Aristo-Studio slide-rule, 10-inch by Dennert and Pape, Hamburg, Germany,1964.