I found this under the floor in of our storage closet in our Barth while renovating it. Apparently someone left it there many years ago. It would be interesting if anyone does remember it.

It it was left by an owner, he was likely an aircraft worker. Both by the drill motor and the bit. That length bit is not common with home mechanics.

Possibly left there by someone who was working at Barth at the time the coach was built?