Most people do not care to get this technical but there are many small changes in the first and second model and even the third model which show a progession of design changes to manufacture the safest and best top break revolver. Third model= four pins on frame between cylinder and trigger Second model= two pins on frame between cylinder and trigger the majority of the safety automatic revolver do fall into these two types.įor a quick and easy way to tell the first and second and the thrid models apart. stop) and the last fourth type (collar and lug auto cyl. your pictures only show the second (threaded cylinder bushing non auto cyl. no cylinder outside of these types are interchanable. Only the cylinders within these four types are interchangable. It is a double post latch and it has a 3 inch barrel. I’m not sure where to find the serial number, although I found a some text on the the butt stating the dates June 16 96 and Aug 25 96. These changes were made in all calibers 22, 32 and 38. This gun I know is an Iver Johnson, but I’m not sure how to identify when it was made. stop)ġ895-1908= threaded cylinder bushing (non automatic cylinder stop)ġ909-1910= threaded cylinder bushing (automatic cylinder stop)ġ911-1942= collar on cylinder bushing and lug on barrel ( automatic cyl. I have seen both examples on early and late versions of these revolvers, both Safety Hammer and Hammerless. Others have a much shorter ramp with a defined perpendicular notch. In total there are four type of cylinders used of the safety automatic revolver.ġ894-only= retained by hook on bottom of top strap (non automatic cyl. 32 S&W Iver Johnson top-break cylinders have a 'long' machined cut for lockup without a defined 'stop' at the deeper end. this is very postive and did away with the threads on the cylinder bushing which tended to wear with age. in 1911 a new type of cylinder retainer was introduced, having a lug on the bottom of the forcing cone that had to be match up to a slot on the cylinder bushing. Author: Iver Johnsons Arms & Cycle Works 1871-1993. if in shootable condition it should be safe to use modern ammo in. these use the rectanglar postive stop and the cylinder stop is a seperate part. dave hart, small frame 32 S&W caliber 5 shot safety automatic hammer revolver serial number A 71771 was made in 1912, when 14,300 were manufactured. when the thrid model was introduced in 1909 one of the changes was an automatic cylinder stop was added. most first models and all second models use the threaded cylinder bushing to retain cylinder (1895-1908). these have the long enlongated cylinder stop, early first models have a hook on the top strap to retain cylinder(1894 only). the cylinder stop is actually made as part on the trigger and not a seperate part. All first and second model safety automatic revolvers have non-automatic cylinder stop.
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