Hi and thanks for your replies !
I contacted the George Lawrence museum and the lady working there found a catalogue showing a version of it in 1959. But, I also found photos dating the advertisement of the Smith and Wesson on a George Lawrence dating back to 1868 which goes with the date that that specific S&W type was made. The museum person said it’s also possible but they haven’t scanned the hundreds of catalogues as yet. So I’m grateful for you all narrowing it down.