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<p>[QUOTE=&quot;moreotherstuff, post: 3009337, member: 56&quot;]Watermarks are embedded in the paper.&nbsp; Sometimes they are present, sometimes not.&nbsp; Most are unique to a manufacturer, but some, like the foolscap and the Strasbourg lily, were used with degrees of variation by many different manufactures across many countries. There are thousands of different watermarks, many of which have not been identified, but knowing who made the paper and when can be a step towards validating the veracity of a piece (a far from definitive step - as in the example below).</p><p><br /></p><p>This etching of Durham cathedral has the watermark of J. Whatman</p><p><br /></p><p>[ATTACH=full]289600[/ATTACH] </p><p><br /></p><p>[ATTACH=full]289582[/ATTACH]</p><p><br /></p><p>I think the dates on Whatman paper are when the paper was made, which would be odd since this print was made about 100 years later.&nbsp; Usually dates indicate when the company was founded, but Whatman was the company that invented wove paper in the mid-18th C, so even older than that... and the watermarks on their paper show a multiplicity of dates.</p><p><br /></p><p><a href="https://vintagepaper.co/blogs/news/drying-paper-at-whatmans-springfield-mill" target="_blank" class="externalLink ProxyLink" data-proxy-href="https://vintagepaper.co/blogs/news/drying-paper-at-whatmans-springfield-mill" rel="nofollow">https://vintagepaper.co/blogs/news/drying-paper-at-whatmans-springfield-mill</a>[/QUOTE]</p><p><br /></p>

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