Have a small guitar pin with enamel and filigree work. Very well made with great detail. Can't figure out the hallmarks and/or makers marks. They are so small I could barely get a picture. Looks like 813 and profile head in square cartouche with corners cut. The second mark looks like an A with a pendulum hanging from center in oval cartouche.
Any help appreciated. Thanks
http://i41.tinypic.com/r1ijjl.jpg
http://i39.tinypic.com/5532b5.jpg