Oceanexpo 75, 1st International Ocean Exposition - 沖縄国際海洋博覧会 20y, 30y, 50y Ultramarine & multicolored, Blue green & multicolored

Souvenir sheet of 3
- Country Japan
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Denomination
?20y, 30y, 50yFace value of a stamp, usually printed on the stamps.— Glossary
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Color
?Ultramarine & multicolored, Blue green & multicoloredOriginal 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.
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Price
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Price