Looking for some info on the 4" Model 27. In the section for the Model 27, the bible says the 4" "came later", when exactly was the 4" introduced? I am assuming it was after the model numbers were introduced and therefor there is no ".357 Magnum" in 4"? Are there any S prefix serial number 4"? A quick look at GB I could only find one 4" Model 27 that was pre lock. All the rest were recent production. Are the 4" guns a rare(r) commodity?
thanks
thanks