Файл:1899MiroOteroCornerCard.jpg1899 postal stationery envelope from U.S. occupied Cuba with an imprinted special request corner card of Miro y Otero.Файл:1899US-PSE-PartialRequestCC.jpg1899 postal stationery envelope from U.S. occupied Cuba with an imprinted partial request corner card.Файл:Detroit Engine Works envelope.jpgDetroit Engine Works envelope showing not only the standard name and address in the corner card, but also a fancy advertisement with a photograph of one of its products.
The term corner card means the wording, sometimes with a pictorial feature, in the upper left hand corner of a postal stationery envelope[1] or an envelope designed to have regular adhesive stamps affixed to it. It is there for the purpose of stating the sender's return address to facilitate the return of undeliverable mail.[2]
There are four general classifications of corner cards:[2]
Partial request corner cards are a mere outline, letting the sender fill in the number of days for an undelivered envelope to remain before return plus the sender's entire name and address, e.g. "After __ days, return to ...";[3]
General request corner cards have the printed name of the state or possession, e.g. "Philippine Islands";[3]
Post Office request corner cards have the printed specific name of the post office, e.g. "Cristobal, Canal Zone";[3]
Special request corner cards have the full name and address of the sender. These were used by commercial concerns with a large volume of correspondence. They would normally be ordered in multiples of 500.[2]
↑Van Gelder, Peter J.; The Collectors' Guide to Postal Stationery, A Squirrel Publication, Shrewsbury, UK (1997) Шаблон:ISBN
↑ 2,02,12,2Krieger, George T.; The Postal Stationery of the Possessions and Administrative Areas of the United States of America; United Postal Stationery Society, 2009, Шаблон:ISBN.
↑ 3,03,13,2Slawson, George C., Editor; The Postal Stationery of the Possessions of the United States; United Postal Stationery Society, 1957.
