Richard,
Your control yoke always intrigued me and hopefully I have now managed to identify it for you, I believe it is from a Savoia-Marchetti S79 which was an WWII Italian bomber. If you google a picture of the aircraft you can see where the confusion between the JU52 is as they are similar design (to the untrained eye). I am unable to upload pictures of the Savoia-Marchetti S79 cockpit showing the yokes but if you google this yourself and click on google images you will see plenty of pictures.
Ohhhhh this forum is such an antiquated system of uploading images !!
FB