spearhead

Sold as a celtic spearhead but I have my doubts. 8 inches long.

Hi and thanks for looking. I snagged a good treasure I think, here in Fort Walton Beach, Fl. Roughly 7 inches or so long, and roughly 2 1/4 or so inches wide. Bought it from a flea market here, just curious now as to what it may be made of, the age, worth, etc.. I'm fascinated by it! Thanks...

I'm not sure what this is or how old, spear head maybe? My grandmother found this in 1918 near Gunpowder River in Fallston, MD. It's about 5 1/4 inches long and 1 1/2 inches at the widest point. I'm super new at this forum thing and hope I'm in the right spot. Any feedback and or guidance...