A porous pad, often made of a felt-like material, impregnated with ink, used for inking rubber stamps.

plural of stamping ground

A small gummed strip of folded glassine paper, used to mount stamps on an album page.

plural of duck stamp

(US) An adhesive stamp sold by the US Federal and various state governments as proof of payment for a duck-hunting licence, with the proceeds used for conservation programs.

plural of stamp pad

A stamp to be affixed as proof that the tax due on the marked product has been paid.

plural of food stamp

plural of revenue stamp

A stamp or similar paper document (e.g. coupon) issued to be exchanged in shops or storage facilities for food, or (by extension) for other essential provisions, notably in a rationing system or as a non-financial form of welfare benefit.