a stamp company in Massachusetts that produced <#privcoil=private coils> for use in its own <#affix=affixing machine>.

<#perf=perforations> privately applied to <#imperf=imperforate> <#flatplate=flat plate> stamps by the Attleboro Stamp Co. for use in an <#affix=affixing machine>.

see <#almil=Allied Military Government Stamps>.

<#canmach=canceling machines> introduced in 1963 when <#phostag=phosphor tagging> was introduced.  These machines replaced manual canceling machines.

<#postalmark=postal marking> applied to <#cover=covers> indicating that the covers were given special attention due to some special circumstance.  Examples: "Postage Due," "Return to Sender," and "Refused."   Auxiliary markings are sometimes known as Instructional Markings.