47051 & 43144 Exminster 16 September 1990

I have very few pictures of locomotives rescuing failed HSTs, and the ones that I do have are all Class 47s, despite the fact that 37s, 50s and even the occasionally 58 were used at times. In the very last of the weak afternoon light on 16 September 1990, 47051 Great Snipe passes Exminster dragging a HST, with 43144 leading. Presumably this is the 1C51 14:20 Paddington to Penzance service, but confirmation would be most welcome.