e/Duplex cancel

Information
has gloss	eng: A duplex cancel was a handstamp used to cancel postage stamps and imprint a dated postmark applied simultaneously with the one device. In the United States, they were first used in the 1860s and use continued into the 1940s.
lexicalization	eng: duplex cancel
instance of	(noun) a cancellation mark stamped on mail by postal officials; indicates the post office and date of mailing postmark