This IGT M Slot 1634a - Power Switch Assembly was pulled from the working slot machine pictured. You can see video of the working machine on our youtube channel at this link or go to the link provided in the picture
https://youtu.be/h3Lui36zvfg
This item is in perfect working condition. I provide a video of it working to show this because I do not accept returns, especially on items of this age (early 80's) so make sure this part not only fits your machine but that your machine is not working because your part is bad, It is expensive guesswork if you are going that route.