Search for Tokarev TT33, it's technically the same. Although this is true, there are some important differences. The Yugoslavian M57 holds one more round in the magazine for a total of 9 in the mag. The T33 holds 7. Also during dis-assembly the barrel is removed differently, being pulled up and back out of the slide, whereas the T33 is removed from the front of the slide.
Follow the instructions in the owner's manual. If you don't have one, find a gunsmith.
Owner's manual.
Send me your email & I'll send you a scan of the manual.
Contact S&W
The thread I've attached below from TheBoxoTruth.com has a lot of helpful information for all new owners of the TT-33, but I wasn't able to find an original, translated PDF for the operators manual. Sorry, mate. Hope this will suffice.
If you don't have a manual, find a good gunsmith.
If you are looking for the owners manual you can find it at the link below.
If you don't have an owner's manual, find a gunsmith and ask for help
I would contact Webley & Scott directly at the link below and ask them for a manual
If you don't have a manual, find a gunsmith and ask for help
Steve's pages might have one.
Contact Berett for a owner's manual or find a gunsmith and ask for help