Hong Kong British Post Offices in China 1862 24c green CANCEL, SGZ5Hong Kong British Post Offices in China 1862 24c green, no watermark, with nearly complete strike of 'AMOY PAID' circular date stamp in red, dated 'MY ? 65', lightly overstruck by 'B62' in blue, SGZ5. A fine used example. Some trimmed perforations and a trivial corner crease, still a good example of this very scarce usage. Amoy was one of five original Treaty Ports opened to British trade by the Treaty of Nanking in 1842. A consular postal agency was