Worldwide Air Post Stamps and Postal History, Philatelic Rarities of the World. Part 2

China

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Start price: $150

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1912, Waterlow & Sons vertical carmine overprint ”Republic of China” on 2c green, block of four with horizontal gutter in the middle and gutter strip at left, imperforated between bottom stamps and gutter, full OG, hinged, VF, Chan #171 var, Est.$250-$300, Sc. # 165 var