Faber-Castell, Keuffel+Esser, Aristo, Nestler, Post Hemmi - Rekenliniaal - regolo calcolatore - rechenschieber (10) - Hout, plastica, metallo e vetro - Catawiki
Slide rules were used before the electronic calculator
Keuffel & Esser Co. - Leroy lettering set in original mahogany box - Catawiki
Faber - Castell & Albert Nestler - Rekenlinialen voor berekeningen op hoog niveau met originele hoes - Geroplast , celluloid , mahoniehout , glas - Catawiki
Faber-Castell 2 mm/3.15 mm TK Lead Sharpener, Green : Artists Sharpening Tools : Office Products
Vintage Faber-castell 883/a 3 Side Ruler in Original Case Made in Germany
Charpentier Calculimetre Keuffel & Esser
Faber Castell Art & Graphic Limited Edition set 110052
Vintage Faber-castell 883/a 3 Side Ruler in Original Case Made in Germany
Faber-Castell, Keuffel+Esser, Aristo, Nestler, Post Hemmi - Rekenliniaal - regolo calcolatore - rechenschieber (10) - Hout, plastica, metallo e vetro - Catawiki
NOS 1970s 0.5mm Faber Castell TK Fine 9705/0 Germany Green H/2H/3H/4H/