Definição

• Mint bloom on an uncirculated production coin, consisting of minute radial corrugations; these vanish rapidly after even brief circulation, accordingly becoming a test for the grade (except on prooflike strikings). "Tilt a frosty uncirculated piece back and forth in the light and radial lines of light rotate in fields somewhat like the blurry lines on moving cartwheels or carriage wheels in a Western movie." Breen {1977}, p. 298.

Fonte

• Breen Encyclopedia

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