New silver collectors’ item:
“Wilhelm Schickard’s Calculator“
A modern replica of the calculator:
TECHNICAL DATA
Composition: silver .925
Diameter: 32.50 mm
Weight: 18 g
(news and image from Jo Hoogeveen)
New silver collectors’ item:
“Wilhelm Schickard’s Calculator“
A modern replica of the calculator:
TECHNICAL DATA
Composition: silver .925
Diameter: 32.50 mm
Weight: 18 g
(news and image from Jo Hoogeveen)
