see <#amstamp=Air Mail Stamp>.

a <#stampenv=stamped envelope> on which the embossed stamp-like <#indicia=indicium> is entirely lacking in intended color.

<#poststamp=postage stamps> issued following World War II by the Allied Military Government for use in Italy, France, Germany and Austria.  Most of these stamps were printed by the <#bep=BEP>.  These stamps are unlisted by the <#scott=Scott Specialized Catalogue> but are regarded by many collectors as belonging within the family of US stamps.

a contractor which printed <#poststamp=postage stamps> from 1879 to 1894, the Overrun Nations stamps of 1943-44, and various issues since 1979.

series of <#defin=definitive>  <#poststamp=postage stamps> that begun in 2002 with the 5¢ American Toleware <#coil=coil postage stamp>,  <#scott=Scott> 3612.