Looking for this spear that sits on top of pole, it's shaped like the early Standard Oil spears. Can't give you any measurments b/cuz it's already up. These poles have a bulge in them where the sign hanger bar fits.
Don't have a pic and am going on memory. Believe it's 3 sided and about 4" long, possibly longer. Top of pole to accept spear is about 3" in diameter and must have something below the spear to fit in pole. Believe pole dates back to 30's era and the spears look like the ones on Standard Oil poles.Tnx for the help