Hi Mr. AFJuvat - I understand you said that your 4th version was in 32.20 . * I copied all the information from my 2nd version right out of my new "Blue Book of Gun Values" [ 41st edition ]I will see what I can dig up. I have a 1905 4th version, chambered in 32 WCF, (32-20).
the model 1905 was the only S&W revolver to be chambered in that caliber.
Use caution shooting 38 special in that revolver. Low power loads only. The heat treatment of the cylinders was a bit "iffy" with the 1905s.
Mine is on page # 1867 right near the bottom . On page #1868 , I saw your 4th Version listed there also . Just to note : In this information , there were only .38 special produced in either version .
Please note I am Not disputing your claim at all , I am just regurgitating what i have found in that huge bible type book . Naturally to identify my particular gun pictured on here , The Ser # for mine is dead on the 2nd version .
I Do Much Appreciate Your Cautionary Information about the heat treat !
Also think you very much for replying - Best , Gunner