It was the 4th of June 2011 on service 1F18.Was it an actual FGW livery unit? 158891 should be an SWT 158 so wouldn't really add up to see it as 3 cars...the actual 3 car sets here are 158951 - 959.
Which service was it on and which date? I'm sure I could pop on a gen group for you and ask around, someone somewhere will know...
We have formed another two 3 car sets using 158766/767/749,749 is being split between the other two.
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And they are numbered 158960/961!
I think it is 951, being as the numbers were all messy and peeling from where they had stuck other numbers over the top of the existing one. Iv got a pic of 763 with 953 placed very badly over the top. Will put it on laterAre you sure it was not 158951? A PM allocated unit made up of 52751, 52764, and 57764.