Russia
Alexander III gold 10 Roubles 1894 AГ, St. Petersburg mint, Bitkin-23, Fr-167, KM-YA42, XF Details (Removed From Jewelry) NGC. Greenish-gold patina, with moderate contact marks. There do not appear to be any type of mount marks involved, rather, it appears that this piece might have been removed from a circular bezel at some time with the only damage being light scraping on the edges. A very scarce type.
Estimate: 2500-3000 USD