The Model 58 was made from 1964 - 1977 .
Was never produced in a .357 configuration to my knowledge .
So a barrel swapout seems likely .
The #s you list are not within the serial no. range of production .
Remove the grips and see the # on the bottom of the grip frame . Should be something from S 255600 or higher .
The Model 58 is a nice gun that I wish I had . Ammo is expensive , and I don't reload .....