Ken: I can't tell you who made it, but part of the name and location of that company is in the cast on the dynamic slide. if you have the vise handy can you take a post a few more pictures and tell us what you think it says? it says Debuque in the part showing that I can read.
one thing about those old anvil vise combo vises you need to know is that they were never made well enough to be a good anvil or a good vise and most are broken. if yours is working it might be something other than another vise to put up on a shelf, but that might be the best place for it.
i'm guessing late 1800's that it was made and maybe mid 1800's.
good luck