★ An extremely rare variety ★

ITALY. Bergamo. Commune, 1236-1250. Mezzo Grosso (Silver, 18 mm, 0.90 g, 6 h), in the name of Emperor Frederick II. FREDERI/CVS - IMPRT• Laureate and draped bust of Frederick II, in the style of a Roman emperor, to right. Rev. PGA/MVM (the P with an abbreviation mark for PER) Building with three towers and four arches on rocks.; abobe, wheel and annulet above crescent. CNB 26. MIR 17/1. An extremely rare variety. Slightly bent near the edge, otherwise, good very fine.