One of the first sets from tri-ang was the R3X goods set. This came out in 1953 with the notorious standard track. At the time it was fine but later tended to warp and go out of gauge.
The set had a Jinty locomotive and four wagons, including a brake van. Notably, the wagons were made of plastic. Moreover, the Tri-ang R3X Goods set had an R.42 speed control unit, these needed an external transformer to operate. The other version had a battery controller.
Triang had its origins in 1950 with a train set made for Marks and Spencer. In fact, the first Tri-ang catalogue came out in 1955.
See more iconic model railway images in the looking back series.