GEORGE WASHINGTON 3c Rose

D Grill: about 12x14mm (15 by 17 to 18 points)

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

3c
Color
?
Original catalog color of the stamp.

Rose
Print method
?
Method of process of imprinting designs on paper.

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

12
Watermark
?
A pattern embedded in a paper during stamp producing process.
— Basic philately terms for amateurs

Unwatermarked
Issue Date
?
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

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SP Special Peculiarity:

Grills D were produced by rollers with surface covered or partly covered by pyramidal bosses. On the D grills the tips pf the pyramids are vertical ridges.