Geezer Glide:
The best I can give you for your Model 36 Chiefs Special is 1959-1962. Serial range for those years was 163501-295000.
rdurham:
Welcome to the forum. Think of it as a private club rather than a public meeting as far as decorum is concerned & you will fit in.
By 'stove piped it' I'm assuming one or more projectiles is stuck in the barrel? Usually stove piped refers to a case that didn't quite eject from a semi auto pistol, leaving it sticking up from the ejection port, like an old stove pipe.
The 'crane' is the part that the cylinder swings out on, joining it to the frame. The correct S&W term is yoke, crane was Colt's terminology.
A six shot revolver with serial number 813xxx will be from early 1941, the model will probably be .38/200 British Service Revolver and the caliber will be probably be .38 S&W. Check the side of the barrel. If it say .38 S&W Special then its the gun below. If it says .38 S&W then its a BSR & You will want this part:
https://www.gunpartscorp.com/ad/396400.htm
A six shot revolver in the S813xxx range would be a .38 Military & Police Postwar manufactured in 1945, caliber will be .38 S&W Special.
A barrel from a prewar .38 Military & Police Model of 1905 4th Change would also fit, as this was basically the same gun, other than the internal drop safety (the S in the serial number stands for safety).
https://www.gunpartscorp.com/Manufa...3495/Revolvers-42026/MilitaryPolice-38388.htm is the usual source for spare parts for these older guns, they are out of stock at the moment, so just keep checking back.
If the existing barrel is not bulged, then a gunsmith may be able to drill out the obstruction. If bulged (run your fingers along it and feel for a raised ring) then replacement is probably the way to go.
A caveat. A lot of the British Service Revolvers were sent back to the USA in the 1950s, the cylinder drilled out to chamber the .38 special cartridge, and then sold as mail order surplus. These will have two distinct steps in the chambers instead of one. They are basically worthless to collectors and are very limited as shooters as the oddly shaped chambers can bulge or crack brass. I would not spend any money repairing a drilled out gun. If it has sentimental value then I would hang it on a wall in a shadow box.