I have a pair of NOS blades marked 00073E for sale, these have superficial marks from storage and transport but show no signs of flight use. These are for a Kopper Aeromatic propeller hub eg F200. (I do have an 8 hole and a 6 hole hub that will work with these blades, and an 8 hole spinner for the F200 hub, separately). Planes using these blades include many smaller models eg Ercoupe, Cessna 120 & 140, Piper PA 11&16, and Swift. There is currently no source of new certified blades so this may be it. Pickup is avail in May TX, or we can ship UPS ground