Would be an aweful shame to turn a good Slick into a spear, kinda makes me wince. Don't get me wrong, it's yours to do as you wish, I'm just jealous.
Been want'in a Slick for a while now.
Tain't a Slick IMO. Again, the blade is 12"x 1.5". Everything I ever saw called a "Slick" was proportionately much wider for it's length and didn't have a socket near this size. Also, it has some pitting, no handle, and some peening on the socket where someone drove it handleless with a steel hammer.
Could it be cleaned up? Sure, but I have lots of good chisles and gouges. They go for next to zip around here at house and estate sales. For example, last weekend I got a nice Buck Bros. 1/2" semi-circular gouge and a Buhlson's & Sons (hardware co.) 1/4" straight gouge for $.25 each. They just had some powdery rust and nice handles.