I'm not
that old.
I vaguely remember reading about such trials but can't recall any pictures. That would probably have been in Humphrey "Footnote" Wynn's era at Flight. (Guess what I'm reading at present).
Talking of low level, wiring an airfield is one thing, but how about the Buccs wazzing Beirut High Street? Talk (probably just talk, at that) of returning with clotheslines/TV aerials.