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<p>[QUOTE=&quot;Fid, post: 3607615, member: 7724&quot;]it was most probaly one of the many small ateliers that worked with Plâtre de Paris and the siggy could be from one of the designers.</p><p>&quot;Un an après le <a href="https://fr.wikipedia.org/wiki/Grand_incendie_de_Londres" target="_blank" class="externalLink ProxyLink" data-proxy-href="https://fr.wikipedia.org/wiki/Grand_incendie_de_Londres" rel="nofollow">Grand incendie de Londres</a>, <a href="https://fr.wikipedia.org/wiki/R%C3%A8glements_d%27urbanisme_de_Paris" target="_blank" class="externalLink ProxyLink" data-proxy-href="https://fr.wikipedia.org/wiki/R%C3%A8glements_d%27urbanisme_de_Paris" rel="nofollow">l&#039;ordonnance du 18 août 1667</a> rend obligatoire à Paris de recouvrir le bois des maisons avec du plâtre pour qu&#039;elles résistent au feu.&quot;</p><p>after the English succeeded to burn down London, Paris decided to install norms for building materials to be on the safe side; amongst others there was a Plâtre de Paris which was fire retardant and which was used to cover all open woods.</p><p>till today you can buy Ciment de Paris which is faster binding and has a seal and a controlled quality by the Ville de Paris.[/QUOTE]</p><p><br /></p>

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