[[File:{{Infobox wagon|image = GWR 2504 Milk Tank Wagon.jpg|thumbcaption = GWR 2504 Milk Tank Wagon|300pxconstruc = GWR Swindon|rightstatus = Awaiting restoration|GWR wagno = 2504 |othernos = W2504, 061067|designed = |diagram = O38|lot = 1486|wagtype = 6-wheel Milk Tank Wagon]]tank|telcode = MILTANK|topscode = MTZ|brakes = |built = 1924|years1 = 1995|events1 = Arrived on SVR|years2 = |events2 = |years3 = |events3 = }}Milk tanks were privately owned by dairies and mounted on railway owned chassis. This 6 wheel GWR chassis, type MILTANK, was built in 1932 at Swindon to Diagram O38 Lot 1486<ref>Railway Heritage Register Wagon Survey</ref>and carries a 3000 gallon "glass lined" (vitreous enamelled) steel tank, originally supplied for United Dairies.
It was acquired in 1995 by [[The GWR 813 Preservation Fund]], arriving on the SVR in November of that year from Swansea Landore Diesel Depot where it had been used as a waste oil carrier.<ref>SVR Stock Book 9th edition</ref>
