1904 · Key-Driven · Werk 423 von 1.871

A key-driven adding machine in a dark lacquered metal case, eight columns of round keys rising in a stepped bank from front to back, each key cap bearing exactly one digit from 1 to 9, a metal plate at the front edge with a strip of small result windows, each window showing the single digit 0, every other surface plain dark lacquer and dull metal, a metal plate on the front edge reading "Comptometer", standing on a dark baize-covered table before a deep neutral background, a single raking light from the left raking across the stepped bank of keys.
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