Dr. Sun Yat-sen, Black Surcharge - 黑色套印的孙逸仙博士 $50 on 30c Dull vermilion

Without Gum
- Country China
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Denomination
?$50 on 30cFace value of a stamp, usually printed on the stamps.— Glossary
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Color
?Dull vermilionOriginal catalog color of the stamp.
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Print method
?TypographedMethod of process of imprinting designs on paper.
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Perforation
?10 1/2-11, 11 1/2-12 1/2, 13Holes 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.