https://hibrkraft.com/en/glossary/envelopes-amplop/
Envelopes in Bookbinding: Pocket, Tuck Spot and Page — Hibrkraft Glossary
Jul 25, 2025 - In bookbinding an envelope is not a wrapper for letters: it becomes a pocket, a tuck spot or a page in its own right, holding photographs, notes and mementoes...
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