Edgefield
A Southeastern type, (Anderson 1987) A uni-facial knife, some
believe it to be a scraper. A wide, thick early archaic type that
resembles a uni-facial expanded notched Bolen in its first stage.
With the chipped side of the blade facing you exhausted or
re-sharpened examples will be re-sharpened on the left side
producing a steep single beveled edge angling across to the right
blade edge leaving the point to your right, out of line with the
stem. The right blade edge appears to never be re-sharpened. As
with other single beveled points this single bevel re-sharpening
process conserved material and made the knife last longer. See
Bolen Beveled.
The third one is first stage, the angled ones are exhausted forms. Tampa Bay area.
Here's a couple Edgefield knives/scrapers I dug up cached together in Hillsborough Co. Fl. As you can see from the pencil writing, they were found March of 1973. Made of chert, both examples are exhausted and belong to the early archaic period. Edgefields have a lefthand bevel, stem usually worked both sides, blade is unifacially worked. Exhausted examples exhibit a severe angled edge on the left side of blade. Usually found associated with Bolen points.

Example of a near first stage Edgefield from Taylor Co. Fl.
Made of chert this relic appears to have been resharpened at least once. And yep, the blade is flat on the other side.

Example of an Edgefield type that's been pegged for scraping. From Madison Co. Fl., And yep, the blade is flat on the other side.
Text and Pictures provided by: Son Anderson Sr

2" x 2 3/8" - coastal plains chert - Leon County, Florida
Picture provided by Skip Hutchison