Fishplate profile set, standard, end and side, with ledge gauge, for BS 55R flat-bottomed rail, angle fishplates, NPL No.56097, Crown Agents No.12/55R/2, made by Cooke, Troughton & Simms Ltd. for the Engineering Standards Committee, fishplate profiles inscribed Tanganyika Railway, Requisition No.834/1, Dorman Long & Co. Ltd., Middlesbrough, April 1930, in original fitted mahogany case