Mini Lathe On-of Variable Speed Switch

I have a off brand Mini Lathe, the on-off variable speed switch is no longer working.

This switch is push pull for high or low speed, turn for on-off and vary speed so definitely not your average on-off switch.

Anybody have any idea where I might get a replacement?

Any body have a idea on what I might substitute?

On-Off I can handle, would just a radio shack potentiometer work.

I could have two on-off switches one for high speed the other for low if I can figure out the wiring.

I'll go...

Mini Lathe On-of Variable Speed Switch