Russo-Chinese Bank, China, obverse proof on paper for 50 Mexican dollars, Shanghai, 1909, no serial numbers, dragons at left and right, printed signature at low left, minor tears, on extremely thin backing paper, in PMG holder 61, uncirculated, a striking example and a most attractive Bradbury Wilkinson proof, there are no other examples of this type listed on the PMG population census, extremely rare
Pick S544p1, SM 05-43 £4,000-£5,000