This antique stick pin is just lovely. Hallmarked 375, Birmingham. It features a rose gold bead, with a tiny yellow gold acorn on a chain. The acorn is actually a miniature vinagrette, and opens to allow a scent to be added. This would have been on a tiny wad of cotton. It is in lovely condition and measures 5cm in length. The chain and acorn are 4.4cm in length.