This Art Deco watch chain fob features an anthracite druzy, often referred to as a “Pennsylvania diamond,” paired with a bold silver-tone tank-tread chain. The design reflects strong geometric lines typical of the Art Deco period, and the clip bears patent dates from 1902 and 1904. The piece presents in very good vintage condition.
The combination of textured druzy and architectural chain links gives this fob a confident, industrial presence. The tank-tread, skyscraper-inspired pattern adds visual weight and rhythm, making it equally compelling worn traditionally with a pocket watch or styled today as a distinctive pendant or accessory.
Perfect For
- Collectors of Art Deco accessories and watch fobs
- Those drawn to bold, architectural jewelry design
- Styling as a pendant or statement chain element
- Fans of unusual materials and surface texture
Details
- Style: Art Deco watch chain fob
- Fob material: Anthracite druzy (“Pennsylvania diamond”)
- Metal: Silver-tone, likely stainless steel
- Chain style: Tank tread / skyscraper pattern
- Marks: Patent dates 1902 and 1904 on the clip
- Condition: Very good vintage condition; a visible line on the druzy surface and light plating loss on the clip
Measurements
- Main chain length (clip to fob): 5 1/2 inches
- Druzy fob diameter: 3/4 inch (19mm)
- Fob chain width: 7/8 inch (22mm)
- Dog clip and watch chain length: 4 inches




