BULGARIA, Principality. Ferdinand I. 1887-1908. Proof AR 5 Leva (37mm, 24.98 g, 6h). Körmöcbánya (Kremnitz) mint. Dated 1892 KB. KM 15; Y 15. In NGC encapsulation graded PF 66 WINGS APPROVED. Superb moderate toning with light hues of blue and gold. This is the only proof of this type ever encapsulated.
Purchased from M. Louis Teller, 1981.