MONTENEGRO. 100 Perpera, 1910. Vienna Mint. PCGS PROOF-62 Cameo Gold Shield. Fr-1; KM-12. Mintage: 25. A true <strong>RARITY </strong>from the 20th century, this tremendous proof striking emanates from an incredibly small mintage. As such, a piece that always generates tremendous fanfare and excitement whenever it makes an appearance. Some light frosting to the devices allows for a charming cameo nature, while just a few scattered marks in the fields prevent an even higher designation. Nevertheless, immensely majestic and powerful, and a veritable show-stopper in gold.