Talk:Royal Leerdam Crystal

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Glass Mid‑importance

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Mid	This article has been rated as Mid-importance on the importance scale.

Graniver & Roccaver[edit]

The factory used to produce (in the 1930s) artificial stone materials called Graniver and Roccaver which were produced by pressing and melting glass beads together. — Preceding unsigned comment added by 77.61.180.106 (talk) 13:22, 13 September 2020 (UTC)[reply]