craftsman variable speed drill press attachment

[Junkman]

Looking for a craftsman variable speed drill press attachment that has the speed change lever at the top of the headstock. The model identification plate is missing from the bottom of the drill press, so I am posting a picture of the headstock for reference. Best that I can tell, it is a model 113.24511, based on the pictures that I have seen on the internet of what appear to be identical to my drill press.

Video of item that I am looking for. thanks Junk