an <#error> resulting from the complete failure of a press to print a color.

series of <#defin=definitive> <#stamp=stamps> begun in 2000 with the 10¢ Joseph Stilwell, <#scott=Scott> 3420.

name given to the comparatively hard <#gum> applied to <#stamp=stamps> at the <#bep=BEP> during the summer season during the first decades of the 20th century.

a letter mailed within a city at a <#rate=rate> sometimes less than the regular <#firstclass=first class> rate.  Such local letters are of two types: those mailed in cities with <#carserv=carrier service> and those mailed in cities without carrier service.  Some form of local letter rate was in existence from 1863 to 1968.  See also: <#dropletter-gen=Drop Letter>.

island under U.S. administration from 1899 to 1902, and for which <#overprint=overprinted> U.S. <#stamp=stamps> were issued.