Well, the SH usually means Shadow Gray coloring, which is one of the finishes used for the Ti guns. The C used to mean ported but you'd know if you have a ported gun as you can see the holes on top of the barrel. If its not ported and has a hammer spur (which usually has a CH not just a C ) then I'd guess that its just an additional code with the SH. http://www.taurususa.com/products/product-details.cfm?id=318&category=Revolver
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