No published sn data.
Impossible to answer without a DETAILED DESCRIPTION OF ALL MARKINGS>
The lower the serial number the younger the pistol is
What model?
NO
Depends on the model and serial number.
1978
you would need the model number as well as serial number.
Go to: www. proofhouse.com with serial number.
Will need model name to answer.
PC0327
1918
what is the SERIAL NUMBER ??????????