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<p>[QUOTE=&quot;John Anthony, post: 1698250, member: 42773&quot;]The molten metal was poured into plaster casting trees that had overflow runners, the idea being that the slag that formed at the leading edge wouldn&#039;t eventually become part of the flan.</p><p><br /></p><p><a href="http://postimage.org/" target="_blank" class="externalLink ProxyLink" data-proxy-href="http://postimage.org/" rel="nofollow"><img src="http://s17.postimg.org/6knk1jnan/flansimage003.jpg" class="bbCodeImage wysiwygImage" alt="" unselectable="on" /></a></p><p><br /></p><p>Once the casting tree cooled, the flans were cut off the sprues, leaving square edges where the runners connected to the flan. The flans were further machined in various ways before striking, sometimes resulting in even squarer shapes.[/QUOTE]</p><p><br /></p>

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