Feebles and Smiths are essentially very similar. However there is one main difference, in a feeble grind, whether bs or fs, you ollie onto the obsticle and your front truck clears it and balances on the other side. Whereas the smith grind would have your front truck on the side you are on by the rail, ledge etc. Hope that clears it up, its hard to explain without a demonstration. If not watch some videos and try and work out the difference.
no difference
john smith
39 holds less rounds then the 59
Basically, nothing.
The markings.
Martin.
Size.
That will depend on what are you comparing it to.
An engineering change.
No tirggerguard screw is the main one.
Different makers. The cartridge used is the 9x19.
The main difference is that the TSW slide and frame were made as a matched set and have the same assembly number on each.