No, not yet another picture to guess with few clues.

Travelling back from the Swanage Railway today I took the 1410 from Corfe Castle then on to Weymouth for a break of journey before getting the 1608 GWR service back to my car at Maiden Newton.
Today, the 1608 was operated by a two car Class 150/2. Last week it was a 3 car 166. Cosier today, just about okay, but for one issue. The 150/2 had no working toilets.
To provide a train late weekend afternoon from a seaside resort with no toilets (conductor told me they were OOU off depot this morning) isn't brilliant. Well oiled adults and fizzy pop filled children were discomfited.
At Maiden Newton, where the service waits 9 minutes, I counted about a dozen people, men, women (yes, really - crouching in the bushes!) and children, making use of the bushes, platform fence, building side, and behind the token shed. I heard one person say they'd wait until Yeovil Pen Mill. I had to tell them there would be no toilet facilities there either.
Really not good GWR.