S&W serial number?

[sneakerd]

Can anyone here give the year of manufacture, for a Smith, based on serial number? I am getting a pretty early S&W K22, in the gold box, think it's from the late 40's. SN K74022. Thanks!

[spleify]

Im gonna date it early 1949

[sneakerd]

That's kinda around what I figgered. Thanks pal!!