The Chartered Mercantile Bank of India, London & China, Proof 50, Colombo, 18--, crowned arms top centre flanked by a lion and a unicorn, value top left and right (PS.117 for type), 'June 14 1864' in low left field, SPECIMEN overstamp in low right field, slight staining, extremely fine

细节
The Chartered Mercantile Bank of India, London & China, Proof 50, Colombo, 18--, crowned arms top centre flanked by a lion and a unicorn, value top left and right (PS.117 for type), 'June 14 1864' in low left field, SPECIMEN overstamp in low right field, slight staining, extremely fine