Our good friend Eric Vogel sent over more photos from his trip to the Bougainville and Rabaul area.
Some pictures taken on the tiny island called Sohano Island, located close to Buka Town, the northern part of Bougainville. As suggested, this looks like a "Pete ".
All I can say about the Kokopo Museum is that the plane and most of the parts are collected from the plantations surrounding Rabaul. There was no more information available other than what was shown on the small signs near the parts and in most cases there were no signs at all.
Thank you so very much Eric for the excellent photos!!!