Corner card

A corner card is a sender's printed or handstamped name and address on a business cover. It can be quite plain or with artwork. The latter are known as illustrated advertising covers.

 File:US Bishop flag.jpg|US 1924 Bishop, California cover. File:Canada ad corner card.jpg|Canada 1930 Hamilton, Ont. die casting ad cover. File:Philada ad cover.jpg|US 1907 Philadelphia, Penn. beer ad cover. 

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