Rail key profile, Burma Railway
Rail key profile, standard, two ends and side, for Burma Railway 8 inch keys for NS 50lb flat-bottomed rail, contract 1133, by Thomas Summerson & Sons, May 1908.
Rail key profile, standard, two ends and side, for Burma Railway 8 inch keys for NS 50lb flat-bottomed rail, contract 1133, by Thomas Summerson & Sons, May 1908.