Hi Marc,
Unfortunately I don't have the logbooks of the engine. But what I know is that the engine was complete overhauled in March 1977 and that it never flown again. I can not prove it but when a specialist will open the engine he can check if it is right. The engine is complete with magnetos, generator etc. I hope that I can run the engine as soon as the wether get better.
Regards,
Mathieu.