The first photo is upside down.
It asppears to be a 1909- 1910 Kingston five ball carburator.
It's kinda rare but I see less of the 1911 version, that has a 45 degree angle on the air inlet.
They have been reproduced in the past.
Herb
There were some clocks that were screwed onto the center of the steering wheel in place of the acorn nut . Would this watch have a similar thread?
Herb