https://www.amazon.com/Stephen-Biestys-Incredible-Cross-Sect...
It was great fun finding the toilet on each and every cross-sectioned exhibit. :D
Edit: I meant gouach. This is a very non reflective paint hence ideal for photographing. A few artists still work like this. Check out the work of Glenn Fabry
Nuclear Engineering Magazine ran cutaways of reactors, apparently from the fifties all the way to the nineties.
https://gizmodo.com/these-vintage-cutaway-drawings-show-how-...
NaOH•5mo ago