An uncommon form of perforation in which the punches are set in rectangular form to perforate a full sheet of

Holes punched out of stamps generally indicate a form of cancellation. Spanish stamps with circular disk punched out have been

Another name for Key Plate (which see).

A few adhesive postage stamps have been printed direct from the die, held in a handle, and struck in the

Stamp hinges are small strips of paper gummed on one side, and used for hinging or mounting stamps in albums.

Originally used to describe the fine line crossing the outer angles of the corner blocks of early typographed British stamps

The Spanish word for habilitated is used in many surcharges "enabling" a stamp to be used, i.e. giving it legal