It is a FN (Fabrique Nationale) Hi-Power rifle, made in the same plant by the same FN employees as the Browning Hi-Power rifles, except FN didn't cheap out on their own named rifles by using a sheet metal bolt stop, or aluminum bottom metal & pot metal adjustable trigger, like Browning specified for the rifles which would carry the Browning name.
I've been lucky enough to own 4 of these rifles, 2 in .30-06, 1 in .270 Win. & 1 in .308 Norma Magnum. They all had nice French walnut stocks, although normally quite plain grained, as well as rust-blued parts. Very nicely done chequering as well. Too bad somebody removed the rear sight, likely to mount a scope, but you can purchase a relacement fixed/folding rear sight from N.E.C.G.
I guess my question would be, why do you want to sell it?