Here's a short entry from Dick Johnson's Encyclopedia of Coin and Medal Terminology. I was unable to locate an image of the medal mentioned. Are there examples of coins struck this way? Can anyone help? Thanks.
-Editor
Oversize Flan.
A blank larger than intended for a particular coin or medal. Oversize flans will clog or otherwise mis-strike in a coining press (because of collar dies). Open face dies can easily strike oversize flans and are occasionally used to create medals larger than dies employed. A recent example, the Haile Selassie Medal for the New York Rotary Club, 1 1/2-inch, was struck from two 1 1/4-inch dies; the resulting 1/8-inch border was inscribed with lettering. The wide border on such pieces has a tendency to bow up as the center is struck and becomes depressed. Oversize blanks are always used in proving newly cut dies, and often used in die trials.
To read the complete entry on the Newman Numismatic Portal, see:
Oversize Flan
(https://nnp.wustl.edu/library/dictionarydetail/516446)
Wayne Homren, Editor
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