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Definition of Penny Black
1. Noun. (philately) The world's first official postage stamp, issued in 1840 in the United Kingdom as part of postal reforms. ¹
¹ Source: wiktionary.com
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1. Noun. (philately) The world's first official postage stamp, issued in 1840 in the United Kingdom as part of postal reforms. ¹
¹ Source: wiktionary.com