looking for a Tach guy who knows his tachs.

i have around 15 tachs id like someone to look at.
im willing to sell them,but id like to get them dated first.
about half are the conventional sun super tachs,working.
but,the other half is a Strange assortment.

example,
one of them is a Rpm super Tach thats older?? than any other ive seen Or found online.
another appears to be a yenko tach from 69 or 70,
altho the sellers listing doesnt make it clear how he got that conclusion.
plus a Airguide 9k rpm snowmobile tach thats mint in the box,...

looking for a Tach guy who knows his tachs.
Author: BeatersRus