Phantasy

Phantasy - A bogus stamp with no postal value.
Phantom philately - Hobby of collecting bogus stamps.
Philatelic cover - See "Postally Used." ...

Phantasy: A bogus stamp.
Phantom Philately: The collection of bogus stamps. The name is derived from Frederick Melville's book Phantom Philately, one of the pioneer works on bogus issues.

See also: Packet, Pair, Pane, Jackson, Par Avion