Dr. Sun Yat-Sen: Surcharged in Black and Resurcharged in Green - 黑色套印的和绿色重新套印的孙逸仙博士 25c on $50 on 1c Orange

Surcharged in Black with Chinese Characters and New Value in Checkered Rectangle at Bottom, Resurcharged in Green;
- Country China
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Denomination
?25c on $50 on 1cFace value of a stamp, usually printed on the stamps.— Glossary
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Color
?OrangeOriginal catalog color of the stamp.
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Print method
?EngravedMethod of process of imprinting designs on paper.
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Perforation
?12Holes punched between stamps to make separating easier.
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Watermark
?UnwatermarkedA pattern embedded in a paper during stamp producing process.
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Issue Date
?Date inscripted on a stamp or cancellation for used stamps not necessary correspond to real date of stamp issue.
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#
?Catalog number of stamp.