Painted on Canopies

[JDK]

This WWI Fokker D-VII from the Museum of Flight in Seattle does sport one of the camo scheme you are talking about, no ?

German 'lozenge' camouflge. Interesting... but no.

[JDK]

I really should have the answer ready before asking the question, eh?

'Air International' (c. 1986) on Imperial German transparent aircraft-coverings. Cf. "In the early 1900’s Germany experimented with a clear cellulose skin called Emaillit. This skin, along with silver painted internal structures, made the aircraft effectively invisible from the ground when it was over an altitude of 900 ft", David Hall, David Andrews & Sangeon Chun, 'Stealth: 15 More Minutes …