This is a part that is used in 1990's Bally / Williams games
The lhs is no longer so this is your only affordable option at this stage.
Used in the following games:
- Cirqus Voltaire
It is the left side and the right side is also available
https://www.shapeways.com/marketplace?q=swinksreproduction&sort=newest
Unfortunately a thread can't be prepared in the 3d printing process. Therefore you will need to complete the following to finish off before use.
Imperial Use
- the hole is prepared for imperial tapping but to be safe drill a pilot hole of with a 1/16" drill
- then tap a #4 thread to suit the #4-40 x 1/4" black button imperial machine screw
Metric Use
- the hole is prepared for imperial use and is approx 2.44mm in dia so drill out to 2.5mm
- then tap a M3 thread to suit a M3x6mm black button machine screw
Please watch a youtube video on tapping a thread by hand if you have no experience.