The Oriental Bank, proof $500 on card, Victoria, 18- (c.1860), black and white, crowned arms top centre flanked by a lion and a unicorn, 500 in heavy black type top left and right, HONG KONG BRANCH in top margin (P unlisted, Ma unlisted), BATHO & BINGLEY SPECIMEN stamp low right, fresh good extremely fine, excessively rare
The Oriental Bank, proof $500 on card, Victoria, 18- (c.1860), black and white, crowned arms top centre flanked by a lion and a unicorn, 500 in heavy black type top left and right, HONG KONG BRANCH in top margin (P unlisted, Ma unlisted), BATHO & BINGLEY SPECIMEN stamp low right, fresh good extremely fine, excessively rare

Details
The Oriental Bank, proof $500 on card, Victoria, 18- (c.1860), black and white, crowned arms top centre flanked by a lion and a unicorn, 500 in heavy black type top left and right, HONG KONG BRANCH in top margin (P unlisted, Ma unlisted), BATHO & BINGLEY SPECIMEN stamp low right, fresh good extremely fine, excessively rare