A total of 500 of these wagons were built between 1937 and 1959. The earlier wagons had four bolsters, coded MLE, while later wagons lacked bolsters but retained four stanchions on each side and were coded UME. Some later wagons had the bolsters or stanchions removed and were fitted with holding blocks for containers. These were coded FME for wagons fitted to carry LCL containers and GME for wagons fitted to carry 2 x 20'-00" ISO containers. Twelve had a centre mounted large swivel bolster for operating in pairs, or with spacer wagons, to carry long poles or pipes and coded TME.

• The first 75 wagons were converted from existing 40' flat wagons by Tulloch Ltd between 1937 and 1942 with the wagons retaining their original numbers.
• 100 bolster wagons built by Tulloch Ltd during 1943 numbered 24350-24449
• 25 bolster wagons built by Tulloch Ltd during 1947-48 numbered 25650-25674
• 78 bolster wagons and 172 stanchion wagons built by A Goninan during 1948-52 numbered 26275-26524
• 50 stanchion wagons built by A E Goodwin during 1958-59 numbered 29500-29549

The first group of wagons had diamond frame bogies when built, but these were replaced with plain bearing 2AP type, which became the standard. The cast drop centre 2BJ was later fitted to most, but not all, wagons. Later still the curve frame 2AQ with roller bearings became the main bogie for these wagons.

KIT PRICE: $150.00 including wheelsets
       + Northyard disc wheelsets are standard
       + Slaters or NWSL wheelsets can be supplied on request