|WTAF, WTBF and WTEF class Tanker wagons|
An NTAF tanker was issued new as WTAF 640 in December 1989. It was owned by Caltex.
A BP Tanker numbered WTAF 620 was also issued in 1989 but this was quickly reclassified to WTBF.
Three NTAF tankers were reclassified WTEF in 1995. They retained their original NSW numbers 4726-4728.