Please help identify vise maker

[GreenElectric]

Hi, I recently purchased a heavy-duty vise that has a maker's mark on one of the jaws.  It also is stamped "No327" on top of the front jaw.  This is a unique vise in that the jaw opposite the handle is the one that moves in and out.  This appears to be designed to  keep the clamped object on top of the bench, instead of hanging over the edge.  The base is very wide and robust.  Can anyone help to identify the maker please?  (Please click on the image for larger size).  Thank you. . .

[Bill Houghton]

Gee, that looks tricky.  I might be able to identify it upon close examination.  I'll send you my address 

[bill300d]

FPU Bison Bial from the good people of Poland

[GreenElectric]

FPU Bison Bial from the good people of Poland

Excellent, thanks for the post; it was bugging me that I didn't know the maker.  I really appreciate it.

[GreenElectric]

Gee, that looks tricky.  I might be able to identify it upon close examination.  I'll send you my address 

Haha-I hear you-it really is a nice vise. . .

[Sudsy]

At first glance I though some kind of a Wilton
Love those round body vise's
Someday