This is a Very Nice Vintage Round Enamel on Copper Pin of a Goose. The Enamel is done in White, with the Goose in Black (perhaps dark Charcoal).
It measures 1 1/4" and is Signed with initials and dated 86. I can't make out the initials. It is in Very Good Condition.
Vintage Enamel on Copper Goose Brooch