1972 Stock

The London Underground 1972 Stock is a type of rolling stock used on the London Underground. The 1972 Stock was ordered to make up the shortfall in trains on the Northern line's 1959 Tube Stock fleet. It is, however, currently used on the Bakerloo line.

Following the withdrawal of the A Stock on the Metropolitan line in 2012, and the C Stock on the Circle, District and Hammersmith & City lines in June 2014, these trains are now the oldest trains on the London Underground and also on any rapid transit system in the United Kingdom.

The 1972 stock replaced the 1938 Stock and 1959 Stock. First on the Northen Line and then on the Bakerloo line, were they remain today.

Asset Inspection Train
Middle two car are 67DM vehicles - 3079, 3179. Front 2 and rear two are 72 MK1 stock Unit 3079 & 3179 have recently been overhauled in Eastleigh. With no cab windows and new cables leading into each other. The AIT (Asset Inspection Train) will replace the Track Recording Train (1960 Stock DMs and 73 Stock T) which is currently in use.
 * Front two (72 Mk1) 3313-4313
 * Rear two (72 Mk1) 4213-3213