Bibliogr. Institut in Leipzig, Zum Art “Rechenmaschinen” (Bld. 21). Original wood engraved plate, pp. 1–2, showing engravings of calculating machines.
Above: by (1) Pascal’s arithmomete and (2) Leibniz’s arithmometer, and (3) Steiger and Egli’s (Millionaire)
Above: , Calculating machines by (4) J. H. Müller, (5) Burkhard (based on that of Thomas de Colmar), (6) Brunsviga, and (7–8) Burroughs.
Note similar machines in collection Calculant:
- ‘1652’: Pascaline (Replica)
- 1912: Millionaire Calculating Machine serial 2015 (10x10x20)
- 1884: Thomas de Colmar Arithmometer Model T1878 B, serial 2083
- ~1896: Ohdner Brunsviga Schuster Calculator serial 3406
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