Art treasures of Ireland: Gold Dress Fastener 20p yellow & black

Type I

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

20p
Color
?
Original catalog color of the stamp.

yellow & black
Print method
?
Method of process of imprinting designs on paper.

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

15x14, 14x15
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