Britannia and 9f locos. This part may be suitable for other locos, just check the service sheets. The right hand buffer is fixed, possibly glued in place. (No sign of any glue. The other buffer is supplied loose. ).
Hornby S9887 USED Britannia / 9F Tender Frame
Hornby X50081 Class B17/5 Tender Frame With Pickups
Hornby X50010 Class A4 Tender Frame With Silver Stripe, Sprung Buffers, Pickups