e/Proof of purchase

Information
has gloss	eng: A proof of purchase (also called a brand seal by Nabisco) is typically some portion of the package of consumer goods, and is defined by the products manufacturer. Most commonly, the proof of purchase is defined as the UPC symbol on the package, but can be some other portion of the package (such as a boxtop). During the Old-Time Radio period, radio premiums usually required a proof of purchase from the sponsors product in order to acquire them.
lexicalization	eng: Proof of Purchase
instance of	c/Promotion and marketing communications

Meaning
Italian
has gloss	ita: La prova dacquisto è generalmente un talloncino o parte di etichetta della confezione di un prodotto di marca comprovante lavvenuto acquisto di tale prodotto.
lexicalization	ita: Prova d'acquisto