I just received my second roll of 2013 ASE and this batch has the satin finish. The diameter of the satin finish batch is slightly longer (.1 mm) than the first batch and the thickness is slightly less (.1mm). The average weight of the satin finish batch is 31.15 while my first roll (not satin finish but shiny) is 31.25. On the satin ASE you can almost see a rainbow toning when turned under a light and if looked sideways the coin's color is bleach white. My question is why do business strikes ASE from the same year have different finishes? Are they dipped in a chemical to produce the finish and somehow one batch might have more of the chemical layer? Both rolls were purchased from goldmart.com.
