class 195 roof detail

[GWC1]

I am building a 7mm scale 2 car 195. I have taken plenty of pictures of the 'normal' views but I am trying to determine what shape the vents in the roof over the toilet area of the DMSL vehicle are. I can see (from Google earth!) that there are two of them on the toilet end of the DMSL, but can't quite make out their shape. If anyone has any photos looking down on the roof of a 195, I would be grateful to see them.

Thanks