SN's were not required until 1968
You can not tell the model number with just the serial number.
Virtually impossible to tell a model from just the serial number.
No way to tell model number from just the serial number.
Determining the model from just the serial number is virtually impossilbe.
Impossible to id the model from just the serial number.
Can't tell model number from just the serial number.
Impossible to answer with just the serial number.
Virtually impossible to identify the model of a weapon with just a serial number.
Can't be done with just the serial number.
Basically impossible to do with just the serial number.
It is impossible to tell the make and model from just a serial number.
Virtually impossible to tell model from just the serial number and no other information on features.