"Thomas de Colmar" models
"Payen" models
Other arithmometers


"Children" of Thomas de Colmar

Archimedes Austria Bunzel / Delton Burkhardt

       
Gräber Idéal Layton Liliput
       
Madas Peerless Procento Reuters
Saxonia Shires Tate Tim

XxX      
     


www.arithmometre.org
2013