Who makes this square tach?

[RichSchmidt]

I don't have a goodpic of it.If you look over the column of my 73 Camaro it is half visable.I had this on my car back in 1989 but it was installed by previous owner.Most of the work was done on the car in the late 70s{like that shnazy Motion mirrored dash}.I removed the tach long ago but it miht still be round and I would like to reinstall it when the car is done{the car has a factory non tach cluster}.
It was rectangle shaped,had plain white numbers and lines.I guess it was about 3 x 1.5" or so.I know it isnt anything special,but I want the good old dayz feel.Thanks.

[Mr70]

Looks like it could be one of those Airguide RV tachs.
My Grandpa bought one through Warshawsky's for his.