No published sn data.
Can't be answered without more information.
yes
Highly unlikely that sn info is available. Highly unlikely that sn info is available.
Go to proofhouse.com to find out when made by serial number.
made about 1975
It would tell the year when it was produced.
SN's were not required until 1968
Get a letter from S&W
Call Colt and they should be able to give you some basic info on the serial numbers and such but any additional info will cost about $75
Go to Browning.com and look under customer service.
First top would be contacting the company
1920