TheOneKEA wrote:

So what happened to the other two? LU used to have _four_ 4-TCs.

I think you're mistaken! They had a four-car set, a three-car set and a
spare TSO. Usually made up to six-car locomotive hauled rakes for "Steam On
The Met" with the addition of the spare Mark I and Mark II loco-hauled
coaches that they acquired.

DTSOs: 76297 and 76298 from set 415, 76322 from set 427 and 76324 from set
428.
TFKs: 70855 from 412 and 71163 from 430 (the latter a 1974 conversion to
make a 3-TC up to 4-TC)
BSKs: 70823 from 412 and 70824 from 413.