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What is "Babbitt around the *smoked*"?

Thank you, Phil.
In Ukraine, you can buy the old post vices for $50...200 and I already have a vise to work.
Indeed, brazing screw for the vise in the 21 century - is absurd. But I am interested in the authenticity of old technologies.
Maybe I'll try to make such a screw, using bronze and borax.
Alexander.

Thank you for your reply! This is really interesting, but now I have a few questions about brazing (brazing screws only))):
1. Filler material. Now we have special alloys for steel (Cu-Zn or Ag-alloys etc.), but in the past used a pure copper?
2. Flux. Use the same flux as for forge welding (borax, salt, sand...) or more sophisticated?
&3. Brazed screw is strong enough?

Excuse me, if not in a theme. Help to find information. Perhaps it is on the forum, but I dont know much English and I cant find anything.
How did forged post vice? The most difficult thing in a post vice - thread, the question is: how forged thread? Screw, I understand, I can do twisting, but the internal thread?..

Hello! I use this USSR's anvil. Weight - something around 100 kg (220 lbs), length - 0.6 m (24 inch).