casting bubbles??

Discussion in 'Ancient Coins' started by tartanhill, Mar 15, 2021.

  1. tartanhill

    tartanhill Well-Known Member

    I have been looking for such a coin for a while now. Many are smoothed or even tooled to the extent that I really don't want them. Though interested in this coin, I think it may be a cast coin that is not genuine. What do you think?

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  3. Evan Saltis

    Evan Saltis OWNER - EBS Numis LLC Supporter

  4. Theodosius

    Theodosius Fine Style Seeker

    Looks like a cast.

    Where else would all those little pills come from? They don't look like corrosion spots or deposits.

    John
     
  5. Insider

    Insider Talent on loan from...

    Some older authenticators referred to/named any raised lumps on a coin in places where they are not part of the design "extraneous metal" (EM). Obviously, EM can have several causes and many coins that have this characteristic "defect" are 100% genuine. For example, a genuine coin struck with rusted dies will have this characteristic. Unfortunately, in the 70's many coin "experts" called any coin with EM a counterfeit.

    One thing used to determine the cause of EM is whether it is smooth or rough. Casting defects in the form of bubbles are smooth. Heating a coin can cause rounded marks and our plated cents often have plating blisters. Incidentally, many genuine gold & silver ancients have rough granular EM in their relief design.

    Without knowing anything about ancients, the EM on the coin above looks like it is mostly corrosion; however, there are several round, bubble-like lumps that should make a collector of genuine coins pass.

    PS Green = corrosion spot.
     
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