e/Private cancellation

Information
has gloss	eng: Private cancellations are cancellations of postage stamps, or, in some cases, artistamps, applied by other than a government or other official stamp-issuing entity. Private postmarks are commonly used with private postal meters, but in the United States there is a rule that if the time of posting is significant and there is both a private and regular cancellation, the regular cancellation controls. Private postmarks are also not considered in some other cases.
lexicalization	eng: private cancellation
instance of	(noun) a cancellation mark stamped on mail by postal officials; indicates the post office and date of mailing postmark