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<p>[QUOTE=&quot;Rayo56, post: 4059918, member: 2022&quot;]To me, Being involved in pattern making and foundries, they look like a set of sprue pin patterns to make the hole in the sand molds where the molten metal is poured into. (Notice they have draft (taper) on them so they can be pulled easily out of the sand mold. NOTE: The &quot;covered in fine dirt&quot; could be the sand from the molds.</p><p><br /></p><p>&nbsp; <img src="https://i2.wp.com/www.machinemfg.com/wp-content/uploads/2020/03/Sand-casting-Technological-process.jpg?resize=640%2C420&amp;ssl=1" class="bbCodeImage wysiwygImage" alt="" unselectable="on" />[/QUOTE]</p><p><br /></p>

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