RARE Buick tach-what car is it from?

[MIKE Z buicks]

A friend of mine found this tach at a swap meet-I've never seen one like it.
Maybe from a 50's -early 60's? Has a HI-LO switch on it and a coax lead wire. Any clue? THANKS!

[scott kerns]

I dont know but I like it.....

Scott

[kevin mcculloug]

Never seen one like it.:Do No:

[flynbuick]

It appears to be some Buick guts in a 64-66 Olds Tach/ Vacuum gage cup. There is no red line either so I wonder if it is a custom face. If it is really from a Buick I would be looking through the 64-66 models also.