Referring to 1907 $10 Indian.

A misnomer for the flattened or rounded rim of the 1907 Indian $10, caused by an adjustment to the die to control the metal flow and prevent knife edges from occurring. Reportedly over 30,000 were struck, but all save 42 were melted, creating a rare and valuable variety. Other coins, including proof Lincoln cents have "rolled edges" - they were struck from dies that controlled the metal flow around the collar. The only recognized "rolled edge" variety is the 1907 Indian $10.

A synonym for rolled rim.