MEA M391107. These mineral wagons use the underframes of HAA MGR hoppers with a strong open toped box body that take a lot of punishment when loaded and unloaded by digger machines.
This wagon has a M prefix to its number. In the run up to privatisation in the UK three freight businesses were set up and some added a company prefix to some of their wagons numbers - M for Mainline in this case. The M prefix was previously used for former LMS wagons in the British Rail wagon numbering scheme.
Margam, 29th July 2005. Colin Baker (lokfuehrer@ntlworld.com)