![unused $50 in black with overprint type B [11], fine unused. Photo](https://www.christies.com/img/LotImages/2001/SPH/2001_SPH_01288_1271_000(034817).jpg?w=1)
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unused $50 in black with overprint type B [11], fine unused. Photo
Yang EC357a, US$600
Yang EC357a, US$600