I have just discovered that the first polearm / Partizan posted here was excavate by my father, Jack Williams (F.E. Williams III) near Fort Mose, and probably dates from the War of Jenkins' Ear. The Siege of Fort Mose occurred on June 26 of 1740.
http://en.wikipedia.org/wiki/Siege_of_Fort_Mose
This screen shot is from an interview Dad gave to a local TV station in 2007.