Fishplate profile set, standard, end and side, for BS 45R flat-bottomed rail, shallow fishplates, NPL No.55968, Crown Agents No.12/45R/2, made by Cooke, Troughton & Simms Ltd. of the Engineering Standards Committee, in original captioned fitted mahogany case, profile inscribed Tanganyika Railway, Requisition Nos.696/6, 682/6, Dorman Long & Co. Ltd. , 1930, on back, possibly a secondary inscription