A neat vintage coat button from the Edwardian to 1920's. A unique button suitable for crafts, jewelry, costuming. Made of mixed material, a mottled dome shaped celluloid center, with a housing and backing in black metal. 

Diameter is 1-3/8" wide. Height of the button is 1/2" tall. 

Condition:  dome is very nice.  Metal part does have some paint loss / scratching / surface rust.