Stamp or musical seal in finely chiseled gilt metal with a Greek frieze on the perimeter, stamp engraved with a monogram, with its chain, from the 19th century.
This stamp is in good condition and is of remarkable quality. The mechanism of the music box works but will need to be cleaned. The central part in the shape of a top serves as a crown, small button on the edge for starting (see red arrows in the last two photos).
A note: the gilding is a little worn in places, dirt, scratches and wear of time, take a good look at the photos.