Definitives.org

Glossary of philatelical terms

SASE

Acronym for Self-Addressed Stamped Envelope: an unused envelope addressed to the sender with return postage affixed.

SASSONE

Italian stamp catalogue of Italy, Vatican City, San Marino, Italians colonies and old Italian states.

SCOTT

American stamp catalogue. It covers American and worldwide stamps.

SET

A series of stamps with similar design or purpose.

SET OF FOUR

Block of four stamps in two lines: their value is usually higher then the sum of single stamp values.

SIZE

The size of the stamp, in mm.

STANLEY GIBBONS

Worldwide British stamp catalogue.

STOCKBOOK

Book with horizontal pockets to hold stamps.

STRIP

A series of three (or more) stamps joined together either horizontally or vertically

SWAPS

Duplicate stamps used for trading purpose.