This 7mm. finescale GWR 10T. OPEN Dia. O2 Lot 486 goods wagon with support rail fleet number 74800 in lightly weathered livery was built by J.C.J. (plate on underside) from a whitemetal/etched brass kit. The model has compensation to both axles and metal-tyred spoked wheelsets. The buffers and couplings are sprung.