PAN-AMERICAN EXPOSITION INVERTS, CENTENNIAL 1c, 2c, 4c Green & black, Carmine & black, Deep red brown & black

Strip of 3 stamps

Country United States of America
Denomination
?
Face value of a stamp, usually printed on the stamps.
— Glossary

1c, 2c, 4c
Color
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Original catalog color of the stamp.

Green & black, Carmine & black, Deep red brown & black
Print method
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Method of process of imprinting designs on paper.

Lithographed
Perforation
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Holes punched between stamps to make separating easier.
— Basic philately terms for amateurs

12.5x12
Watermark
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A pattern embedded in a paper during stamp producing process.
— Basic philately terms for amateurs

Unwatermarked
Issue Date
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Date inscripted on a stamp or cancellation for used stamps not necessary correspond to real date of stamp issue.
#
?
Catalog number of stamp.
— Basic philately terms for amateurs