As found on service sheet 450 for models R3709/X R3711/X R3713/X.
Hornby X7523 Princess Royal Dummy Flangless Pony Wheels
Hornby X7349 Genuine Spares Dummy Pony Wheels & Axle For Red Class A4 NEW
Hornby X9847 Genuine Wheels & Axles Set For Ex Lima Class 20 Dummy Bogie NEW
