New dome top piston set for 239 ci Flathead Ford V-8, at Standard 3 3/16" bore and 3 3/4" stroke.  3 ring, grooves 3/32, 3/32, 5.0mm.  Made by or for the French military.  No pins or locks.  Similar to Ford 91A-6108-A2. Chrome piston rings sets available for $89 here