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- "Double Dial Calendar" Shelf Clock, 1881-1885 - This type of clock was generally used in offices, stores, and other public buildings. Its "perpetual" calendar automatically adjusted to months of different lengths, and included February 29 during leap years.
- 1881-1885
- Collections - Artifact
"Double Dial Calendar" Shelf Clock, 1881-1885
This type of clock was generally used in offices, stores, and other public buildings. Its "perpetual" calendar automatically adjusted to months of different lengths, and included February 29 during leap years.