Rail profile, working, end and side, for BS 60 N flat-bottomed rail, Crown Agents No.1/7A, with agency stamp by Colvilles Ltd., 1958, in original envelope.
Rail profile, working, end and side, for BS 60 N flat-bottomed rail, Crown Agents No.1/7A, with agency stamp by Colvilles Ltd., 1958, in original envelope.