Japanese Occupation (Kwangtung): POSTAGE DUE, Surcharged in Black - 日本占领（广东省）：加盖“暂作”改值邮票：欠资（黑色的套印） $100 on $2 Yellow orange

Surcharged Diagonally with New Value Between Parallel Lines in Black

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

$100 on $2
Color
?
Original catalog color of the stamp.

Yellow orange
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 1/2
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