Sun Yat-sen and Chiang Kai-shek - 孙逸仙和蒋介石 80c Gray, Light brown & slate
                                    - Country China
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                  Denomination
                  ?80cFace value of a stamp, usually printed on the stamps.— Glossary
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                  Color
                  ?Gray, Light brown & slateOriginal catalog color of the stamp.
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                  Print method
                  ?PhotogravureMethod of process of imprinting designs on paper.
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                  Perforation
                  ?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.