Posted 05/17/2011 6:36 pm
biokemist6 is absolutely correct, especially to how they are made. PLs are scarce first strike business strike coins. Generally both the fields and the devices on the fresh die have been polished, resulting in mirrored PL coins. Cameo PLs exist, but are excessively rare outside of the Morgan $1 series. Beware of slightly cloudy proofs from the classic era (pre-1964) offered as PL Philadelphia strikings. Some series are next to impossible to authenticate between prooflike and proof. Nickel coins particularly.
