A closed box containing dampened spongelike material, over which stuck-together unused stamps are placed on a grill. Humidity softens the gum, allowing separation of stamps. In some cases, the sweatbox may be used to help remove a postally used stamp from envelope paper.: Abbreviation for the French "Taxe.'' Handstamped on a stamp, the T indicates the stamp's use as a postage due. Handstamped on a cover, it indicates that postage due has been charged. Several countries have used regular stamps with a perforated initial T as postage dues.

A closed box with a grill over which stuck together unused stamps are placed. A wet, sponge-like material under the grill creates humidity so the stamps can be separated without removing the gum.

a closed box with a grill on which stamps that are stuck together are placed. Below the grill is a dampened sponge-like material that provides the humidity needed to soften the gum and allow the stamps to be separated, in an effort to leave the gum undisturbed.

a device that causes tobacco leaves or fruit or hides to sweat

small or narrow cell