Thanks Graeme. I was wondering whether this was an "early" 3-view as the wing leading edge inboard of the engines is wrong. Perhaps taken from the prototype or whatever information was available at the time? I cannot see that the An-8 was ever designated the An-4, but if its from a 50's publication its possible the designation was not known and a presumption made based on the next even number in sequence?
Stand-by whilst I prep the next one.