- Object Name:
- Perpetual Calendar Button
- Place Made:
- Paris, France
- Date:
- c. 1877 (date of inscription)
- Medium:
- Copper alloy: silver-plated and cast; ink on parchment
- Dimensions:
- Diameter: 1 1/4 in. (3.2 cm)
- Credit Line:
- Gift of Dr. Harry G. Friedman
- Accession Number:
- F 3808
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