Hello Manfred!
20 Jul 96 22:01, Manfred Baier wrote to All:
 MB> I'm looking for someone who could help me by a few questions about US
 MB> coins.
 MB> HALF DOLLAR from the 196x with JFK
 MB>             from the 195x with liberty
1948 thru 1963 half dollars are Franklins
 MB>             from the 194x with liberty
 MB> QUARTERS    from the 193x - 1949
 MB> silver????
They all have a silver composition of 90% except the 1965 thru 1970 JFK. 
These have a 40% silver composition.
John
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