Yes, correct note Stein
I spent last hour in searching for some images from my collection and note one small image of Tempest, photographed in flight from bottom, it have mounted under wing cannons but wing bottom panels show variations in tone, like the some panels are in different colors or even natural metal (hard to believe in that...). I have no scanner but I can take image with my camera, to regret not to be good match. Is this any test sample or operational sample?