FYI: early copper pennies have diferent metals

[1badmf]

Early pennies actually had a diferent consistancy, so those sorting with a compartor, make sure to use the right master coin.
http://parkpennies.com/penny/penny.htm

[fasteddy]

hey man, thanks for the heads up...FYI...pennies are metal. The composition varied some in the early years and even in the later years.