Corner card
Envelope with printed return address
From Wikipedia, the free encyclopedia
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]
Classification
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]