Under German Occupation: German Stamp 20c on 25pf Orange & black, Yellow

Surcharged

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

20c on 25pf
Color
?
Original catalog color of the stamp.

Orange & black, Yellow
Print method
?
Method of process of imprinting designs on paper.

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

14, 14 1/2
Watermark
?
A pattern embedded in a paper during stamp producing process.
— Basic philately terms for amateurs

Lozenges
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