Envelopes

thumb|upright=1.35|alt=Front of an envelope mailed in the U.S. in 1906, with a postage stamp and address|Front of an envelope mailed in the U.S. in 1906, with a postage stamp and address thumb|upright=1.35|alt=Back of the above envelope, showing an additional receiving office postmark|Back of the above envelope, showing an additional receiving post office [[postmark]]

monetary gift given in eastern Asia

postmark on a cover, postal card or stamped envelope franked on the first day the issue is authorized for use

material of a seal

stationery item with imprinted stamp

outside of an envelope or package with an address and typically postage stamps that have been cancelled

thumb|320px| {| width="95%" | width="5%" |   ! width="35%" align="center" | Knock-outwithout trapping ! width="35%" align="center" | Knock-outwith trapping ! width="25%" align="center" | Overprinting |} Comparison of a [[Knock-out (printing)|knock-out with and without trapping, and overprinting for perfect and imperfect registration.

Malay adaptation of the Chinese red envelope custom

first postal stationery, 1 May 1840