Weird things in this cardboard box

["Kai M. Radicke" <kradick1@ic3.ithaca.edu>]

Hello listers,

Yesterday my mailman gave me a box full of parts he used or had bought for
his Spitfire, and I've found some weird things in there... the weirdest one
being:

A column mounted tachometer.  This is an aftermarket product made by Sun
Electric Co of Chicago Illinois.  It is a Sun Super Tach SST-806, which
reads up to 8000 RPM and had a setable redline.  But it is an electric
tach...

I'm really just trying to find out more about this, I like finding out info
about period accessories... mainly because I wasn't alive then!

Thanks,

Kai