Label.—Another name for a stamp.
Local Stamps.—Stamps which are available for use in some town or special area. There are none in England at the present time. Russia and Morocco are probably the only areas where they still exist, though Switzerland, Turkey, Germany, China, and the United States recognized them until within recent years.
Mint.—A term applied to an unused stamp in perfect condition, including the gum on the back.
Mounts.—See Hinges.
Obliteration.—Marks placed on a stamp by the authorities to denote that it has gone through the post.
Obsolete.—A stamp that is no longer issued by the postal authorities.
Official Stamps.—Those printed for use in Government offices—i.e., the obsolete Inland Revenue officials of Great Britain.
Overprint.—An inscription printed on the face of a stamp to alter in some way its original use.
Perforated.—A frame of small holes around a stamp made in order to facilitate separation from its neighbour.
Perforation, Compound.—Exists when the holes are not of the same size and distance apart around the four sides of a stamp.