SERBIA. 5 Dinara, 1879. Vienna Mint. Milan I. NGC PROOF-67 Ultra Cameo. Dav-304; KM-12. Type 1 (lettered edge variety). Sitting at the top of the census for NGC, this stunningly brilliant proof issue presents exquisitely mirrored fields and supremely frosted devices. The cameo nature created is simply sublime and makes this the perfect piece for the connoisseur.