1930's Vintage Collar Clip Stay

Collar clip stay for the dapper Gentleman.

Size: 1 7/8" in size.
Type: Pre Owned Art Deco from the 1930's.
Condition: Darkened patina. Has a small chip in the gold plating on side. Some rub wear to the plating on back where base metal shows through some.
Materials: Gold tone plated metal.
Markings: Marked Pat. No. 1840885 on the back.