Framed French Perpetual Mechanical Calendar, c. 1868, gilt frame with the engraved plate reading Calendeier Perpetuel above the months, and central scale with dates from "1849 to 1899," recessed manually movable dial showing days of the week, flanked by goddess Demeter and Hermes holding a caduceus, lower scale indicating the days of the month, and leap year example stated at the bottom, printer cartouche reading Wm. Gengenbach Geneve, with printed legend or instructional label on reverse, with additional year scales up to the year 2000, lg. 16 1/2, wd. 14 in.
Framed French Perpetual Mechanical Calendar, c. 1868, gilt frame with the engraved plate reading Calendeier Perpetuel above the months, and central scale with dates from "1849 to 1899," recessed manually movable dial showing days of the week, flanked by goddess Demeter and Hermes holding a caduceus, lower scale indicating the days of the month, and leap year example stated at the bottom, printer cartouche reading Wm. Gengenbach Geneve, with printed legend or instructional label on reverse, with additional year scales up to the year 2000, lg. 16 1/2, wd. 14 in.
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