Because of the base, Scott is probably right. However, it looks too well done for Del Prado and I don't recall seeing that one before. I looked at the Del Prado catalogue on the Michigan Toy Soldier site and didn't see it. I think there are some Del Prado prototypes that K & C made that never saw the light of day, such as one of the British pilots that were featured in some of the wooden War Bird releases, and this MP may be one of those.
Now that I'm looking at those Austins, I wish I had gotten Normandy version. Quite nice looking.