Vintage sale Coro Door Knocker Brooch

This is a vintage rhinestone brooch, from around the 1950's. It is brass and made by Coro. It is stamped on the back “Coro”, with the Pegasus mark.
It is articulated, and the knocker moves. It is set with multi colored rhinestones and cabochons. All the stones are there, and seem to be in great shape. The only flaw is the clasp- the movable closure is missing a piece, but you can still hook it . It's just not as secure. This brooch normally sells for a lot sale more, but I am taking this flaw into consideration when pricing. Please study photos carefully as all sales are final.
Measures approximately 2 3/4 inches x 1.5