ierra Leone introduced the world to self-adhesive postage stamps on 10 February 1964. Despite that being nearly 60 years ago, those stamps are little different from the self-adhesive stamps we use today. As with all self-adhesives, they basically comprised a sandwich of a top paper (matrix), on which the stamp design was printed, a backing paper, and between
Sticky situation
Nov 11, 2022
2 minutes
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