This vise has a long, storied history. It began as a Thomas Vise. Was improved upon by Harry Darbee, re-named the Phelps Vise when Phelps made them. Then, became the Xuron Vise.
It is still made today, by a company in Florida.

The standard model sells for about $130. It is a great vise for the money.

The long, bent stem ends in a ball which is held in place by a plate. This allows the entire stem/jaw assembly to be moved to nearly any angle while tying. I really like the design which is over 60 years old!