The SN is dated but i have a different question. inside the arm where the cylinder swings out is a different set of numbers as well as 2 letters( X N) that look hand punched since they are off centered.
Both of the SNs are 92 xxx but they are different so i supposed the cylinder was replaced at one time. but whats with the xn? any guesses?
The serial number is on the underside of the frames grip butt.
The other numbers are assembly/inspector numbers that only S&W could decipher.