used  NO. 21 (Princes Town): 1851 (1d.) blue with good to large margins and with fine central strike. Rare. Photo
used NO. 21 (Princes Town): 1851 (1d.) blue with good to large margins and with fine central strike. Rare. Photo

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used NO. 21 (Princes Town): 1851 (1d.) blue with good to large margins and with fine central strike. Rare. Photo