Facsimile
An imitation, akin to a forgery, but sometimes marketed with an overprint denoting its character, e.g. Facsimile, Falsch, or with
Face Value
The denomination or value stated in words or figures on a stamp.
Xylol
The spirit in which the best photogravure inks are mixed; stamps printed from such inks should not be immersed in
Government Imitations
See Official Imitations.
Face
The front or design side of a stamp.
Control
A record letter, or letter with number, printed in the margin of a sheet of stamps, usually in the bottom
Flown Cover, etc.
An envelope, letter, card, pigeongram, etc., bearing evidence of having been transported by air.
Double Perforation
One or more sides of a stamp may have a double perforation, with space between, or nearly coincident; in the
Flaw
A damage to a printing plate or stone may cause a reproduction of the flaw in the printed sheet. Such
Gum-breakers
In modern stamp manufacture, the gummed surface of the paper is broken up into minute sections by being drawn across
Head Plate
Another name for Key Plate (which see).
Hand-stamped
A few adhesive postage stamps have been printed direct from the die, held in a handle, and struck in the
Hinge
Stamp hinges are small strips of paper gummed on one side, and used for hinging or mounting stamps in albums.
General Collection
A collection formed on broad lines, embracing a wide area or group of countries, without specialisation.
Flat-plate Print
In U.S. stamps identical in design, colour and denomination have been printed on flat-bed and on rotary presses; they are