AB No Frame usually refers to the AB
350 back without a frame (versus the AB 350 back that does have a frame). There is only one AB 460 back and it does not have a frame.
Doyle (Bat) has been confirmed with the AB 350 No Frame back.
Frill has been confirmed with the AB 460 back.
Attached are images of the three American Beauty backs taken from T206Resource.com:
Best regards and happy collecting
Craig