One of the issues with #36 was that the tenon and the receiver didn’t match and therefore didn’t seal. Since it is our goal to make the instrument playable again, we set out to fix this.
Unfortunately, both the tenon and the receiver had been buffed and repaired so many times already that there was hardly any metal left to work with. The slot on the receiver also turned out to be too large and was splitting further.
Since both the tenon and the receiver were badly out of round, damaged, and almost paper-thin, we decided to fabricate new cylinders. The screws and the lyre holder are all original and soldered onto the new receiver.
The tenon was actually so thin that someone had previously reinforced it with shim stock and lots of soft solder; probably also in an attempt to make it round again. You can clearly see the seam in the picture and the grey soldered areas.
And here is our newly fabricated tenon. It now matches the receiver perfectly and will seal nicely.