Need a picture of your bottom... seat areas

[TRE Cup]

Hi
We have seen different treatments , by the factory, on the exterior bottom area of the back seat panels in the chassis.
Of particular interest is the 1972 and 1973 models. We don't need verbal descriptions or pics of restored cars.
I need to get pics of original cars' under body pics of the seat area. Did a search on Early S and no results

Please help
thanks in advance