mid-nineteenth century mail moved by ship in sealed bags from an <#exchangeoffice-gen=exchange office> to an exchange office in another country, containing mail for that country.

<#personalizedpostage=Personalized postage> produced by <#stampcom-gen=Stamps.com>.

1) the day a <#stamp> is removed from sale by the <#usps=Postal Service>.  2) a <#slogancancel-gen=slogan cancellation> applied to stamps on the last day of sale.  A "Last Day of Sale" cancellation was used for the first time on March 16, 1997.

a device that applied initials, date, and <#precancel> simultaneously.

private printer of modern <#poststamp=postage stamps>. Example: 45¢ Pumpkinseed Sunfish, Scott 2481.