KM-Pr56; Gig-P8(R3); Mont-509(R4). Prova. <strong>RARE</strong>. The only example seen at PCGS or NGC and with no reported mintage in the catalogs. Glossy brown smooth surfaces with an aquamarine sheen. Sports an exquisitely struck portrait and equally impressive oak leaves on the reverse. A special coin that announces itself the instant you set eyes on it. The chances of encountering another example in any grade are slim, with the chances of locating an equal being nearly non-existent at this grade level.,PCGS SP-65 BN Secure Holder.,