Fraser - thanks for the photo of the Highland paint chip - fascinating stuff.
Thanks for your comments Tony & Mike.
Mick - if you'd like a copy of the forensic article I'll sort that out for you once I can access it again.
Jon - could you expand on your comment on the green and indian red please?
Richard - thanks for that. I have to say both yours and Steph's comments amaze me; I'm astonished that there seems to be so little hard evidence of the paint schemes for these vans during certain periods which are, in railway terms relatively recent. Perhaps I should retreat to my 1890s GER bunker where there seems to be a lot more information, and if anyone does argue the toss I just challenge them to prove it!