Quote:
due to the fact that nickel is harder than copper
due to the fact that nickel is harder than copper
The actual difference between the hardness of 1c and 5c is quite minimal and not significant:
1c Hardness Range is 62-72
5c Hardness Range is 60-69
Source:
ALTERNATIVE METALS STUDY
Contract Number: TM-HQ-11-C-0049
FINAL REPORT
August 31, 2012
Submitted to: United States Mint 801 Ninth Street, NW Washington, DC 20220




















