Beautifully engraved certificate from the The Aviation Corporation issued in 1941. This historic document was printed by the Columbian Banknote Company and has an ornate border around it. This item is hand signed by one of the company's officals and is over 59 years old. In 1947 the company changed its name to Avco Manufacturing and in 1959 to Avco Corporation. In 1985, the company was merged into Textron, Inc.