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(3rd paragraph below, on US Mint report 1986 “testing upset rim geometries)
…3rd sentence on Coin World article, also the same link above (experimental cross section contours. The width of the rim will be higher and lower in its allowance.)
See further comments for the same uniform obverse and reverse upset rim.
The die is never wider, than the upset rim, even in wear. The the mint also tested coinage dies of varying field and relief contours, in the same paragraph.
“The strike may go to one side, but not all sides”
IMG_6036.jpeg
IMG_6085.jpeg
IMG_6066.jpeg
IMG_6067.jpeg
(3rd paragraph below, on US Mint report 1986 “testing upset rim geometries)
…3rd sentence on Coin World article, also the same link above (experimental cross section contours. The width of the rim will be higher and lower in its allowance.)
See further comments for the same uniform obverse and reverse upset rim.
The die is never wider, than the upset rim, even in wear. The the mint also tested coinage dies of varying field and relief contours, in the same paragraph.
“The strike may go to one side, but not all sides”
IMG_6036.jpeg
IMG_6085.jpeg
IMG_6066.jpeg
IMG_6067.jpeg
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