I have a 1960 small date quarter that weighs 5.87g instead of the usual 5.83 and is just a little larger than a 1959 small date coin of the right weight. I know that between 1953-64 small date coins were a tad larger than a large date coin of those dates (corr: that date), so I know that a wrong planchette error (by using a planchet for the large date quarter) did not happen.
So, is it possible that a wrong planchette from another country was used or is it an acceptable difference in weights between planchettes for the same coins (quarters) for that year and other years? I left a few pictures.
That's less than 1% difference, well within the acceptable range. Your 1960 does appear to be slightly off-center. The only year with both large date and small date is 1953. The 1953 large date is found only with the NSF obverse and is smaller in diameter than all other Elizabeth quarters.
"Dipping" is not considered cleaning... -from PCGS website
Thank You DBM. So anything greater than 1% of the normal coin weight is acceptable. I wasn't sure how much. The coin's thickness looked right so I became curious. Any idea why 1953 had two types of coin sizes and coin dates?
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