BULGARIA, Principality. Aleksandar of Battenberg. 1879-1886. CU 10 Santim Essai (31mm, 10.03 g, 6h). Oeschger Mesdach & Co., diecutters. Dated 1880 OM. KM E1. In NGC encapsulation graded MS 65 RB. Lovely red peeking through light brown proof surfaces. Extremely scarce copper essai. Rarely seen or offered.
Purchased from Charley Wyatt, June 1983.