According to Standard Catalog of Smith & Wesson 4th Edition.
3”
3-1/2”
6”
8”
10”
I used to own a 6” serial number 96761
Still have grandpa’s 3-1/2” serial number 7692 with eccentric cam screw adjustment.
Dave
My first and for a long time, my only .32 cf SA Top Brake was a
3-1/2" I bought 30 some years ago. Last summer, picked up a
second one and it has a 3" barrel. I just had to get one with the
red mottled grips.
Gary,
This is the portion of the factory letter I have on the 6” I used to own.
On January 11, 1891, it states, This shipment contained 10 units of this model in the above configuration.
Dave