C.1881, Gilbert Clock Co., OFFICE DROP CALENDAR, using Maranville style disc calendar (note Maranville's patent was specific about painted metal dials with gear driven rotation, so Gilbert circumvented his patent by using paper over thin metal discs,
Anonymous (not verified)
23 October 2024
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C.1881, Gilbert Clock Co., OFFICE DROP CALENDAR, using Maranville style disc calendar (note Maranville's patent was specific about painted metal dials with gear driven rotation, so Gilbert circumvented his patent by using paper over thin metal discs,
Condition: there is a hole drilled through the back for securing to wall. Dials have darkened some due to age, and there is a strip of dial loss near ...