sequential numbers printed on the back of large rolls of <#coil= coil stamps> to aid in counting.

a <#coil=coil stamp> with a <#pn=plate number> on the face and a <#backnumbers=back number> on the back.

<#proof=proofs>, in various colors, of previously issued <#stamp=stamps>, created for display at the 1881 Atlanta Cotton Exposition.  Example: Scott 116TC.

A smudging on the printing that is characteristic of <#lith=lithography>.

Manufacturer of <#canmach=cancelling machines> in use from 1905 to the 1920s, noted for their distinctive large dial postmarks.