Stamp Collecting Glossary: P-T

The Revenue Stamp
When the new collector delves into the world of stamps, the great variety can be intimidating and confusing. In the case of foreign stamps it may not even be entirely obvious that a stamp of interest is a legitimate postage stamp. While at first perhaps a bit overwhelming, this variety becomes one of the charms of the hobby. Just scratching the surface then, here are a variety of stamps that the …

Perfin
A method to keep postage from being misused.

Perforation
What are the holes between stamps?

Perforation Gauge
What is a Perforation Gauge?

Plate Block
A number of stamps taken from a special place on the sheet

Postage Due Stamp
Postage for under-priced mail.

Semipostal Stamps
Stamps that help with a cause.

Souvenir Sheet
Definition of Souvenir Sheet

Special Delivery Stamp
Postage to guarantee expedited service.

Stock Book
A way to store and display your stamps.

Space Filler
A stamp -- often of rarity or expense -- of lesser condition, used to fill a space in an album until a better copy becomes available.

Topical Stamp Collecting
A definition of what topical stamp collecting is.