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ozjohn

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Everything posted by ozjohn

  1. ozjohn

    Spotting dipped coins

    ozjohn replied to 7255carl's topic in Beginners area

    If you want to dip coins you can make a very effective dip using Aluminum foil and bicarbonate of soda. Line a dish with the foil tip in some of the bicarb and dissolve it in hot water then place coin in the dish and all the silver oxide will disappear. Not that I recommend dipping at all but if you must do it then this is the cheapest way to damage your coins.
  2. ozjohn

    Defining Rarity

    ozjohn replied to davidrj's topic in Free for all

    A 1927 proof halfcrown of the third series with only 15000 sets released must be one of the rarest modern British coins. This coin only exists as a proof with none issued for general circulation as far as I can tell. You can see them on ebay for about GBP100. I guess most of the 15000 still exist as they were probably saved by people at the time however 15000 is a very small mintage. The same can be said for the rest of the set .
  3. ozjohn
    The wear on the lions in the top shields of George 5th florins dated between 1911 to 1919 is typical and probably due to the deep strike on the obverse of the coin which can been seen as ghosting on the reverse as well. After 1919 it seems to improve as the head of the king is struck in a lower relief.
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