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Definition of Bank mix
1. Noun. (philately) bulk stamps collected by banks and other large businesses, then sold to the collecting trade to raise funds for charities. ¹
¹ Source: wiktionary.com
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1. Noun. (philately) bulk stamps collected by banks and other large businesses, then sold to the collecting trade to raise funds for charities. ¹
¹ Source: wiktionary.com