<#nondenom=nondenominated stamps> issued in 1991 with an assigned <#postage> value of 29¢.

<#revenue=revenue stamps> (<#scott=Scott> R1-R102) issued from 1862-1871 to help finance the Civil War.

the most enduring <#canmach=cancelling machine> ever used by the Post Office; manufactured by <#internationalpo-gen=International Postal Supply Company>.  Introduced in 1888, some later versions of the machine were still in service at the beginning of the 21^st century.

<#nondenom=nondenominated stamps> issued in 1995 with assigned <#postage> values of 5¢, 20¢, 25¢ and 32¢.

a U.S. territory for which <#overprint=overprinted> <#stamp=stamps> were used from 1899-1901.