It looks like you have the same type as on my 46 COE. The three piece with the lock ring on the outside of the flater side of the rim, no notches. These are also serviceable. Only the RH-5 Firestone wheel with the lock ring in the center of the wheel are the true widow makers and should never be used. If you get tires mounted on these rims, it's best have your tire guy disassemble and then pick them up to clean and prime them on the inside, keep all the parts together for each wheel.
