Do any Canberra experts know what colour the undersurfaces were painted - grey or silver? I’m about to buy the Airfix 1/48 Canberra B(I)8 and want to model the version based in Laarbruch, Germany in 1970. The kit instructions say silver but I think I read somewhere a while ago that Canberra undersurfaces after a certain date were painted a shade of grey. [*-)]