http://silvercoinand.com/silver-hallmark.html All you need to know about numismatics, world silver coins, old coins from silver and silver American coins Tue, 07 Feb 2012 20:47:28 +0000 http://wordpress.org/?v=2.7.1 hourly 1 http://silvercoinand.com/silver-hallmark.html/comment-page-1#comment-448 Allan Tue, 14 Jul 2009 17:51:53 +0000 http://silvercoinand.com/silver-hallmark.html#comment-448 I have an old cast bar of .999 silver that is also stamped 14.5 tr.oz. The hallmark is a S with a square around it. What manufacturer had this hallmark and the approximate decade of casting. Anyone have an answer. I have an old cast bar of .999 silver that is also stamped 14.5 tr.oz. The hallmark is a S with a square around it. What manufacturer had this hallmark and the approximate decade of casting. Anyone have an answer.

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