westcoast_dave Posted December 1, 2014 Report Share Posted December 1, 2014 WV Swirls are difficult to I.D., especially for newer collectors. Are there any significant differences between the shear marks or shearing mechanisms used at the various WV swirl sites that may aid in identifying them? Or are there no differences at all? Were their mechanisms designed to keep shear marks as non-visible as possible? Any insight is greatly appreciated. Link to comment Share on other sites More sharing options...
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