I just added a propeller photo to my web site, but I'm interested if anyone can help me determine what it may have been used on.
Here is the prop
http://www.woodenpropeller.com/Heine.html
The hub size is consistent with a BMW engine, and it looks as if the original bolt holes were filled and it was drilled on the back for a Rupp fastener. *I don't have sufficient listings to know what size propellers were used on most German aircraft, and the other numbers stamped on it are barely legible.
One of my other propellers (Axial) is fitted for the Rupp fastener and is stamped BMW along with D VII. *Could this one also have been used on the D VII?