Vintage Tachometers

[10x]

Since we have some auto buffs here and I don't belong to an auto forum, I thought I would ask for some help here. I kept two tach from the 1960s.
The first is a Sun ST602 8000 rpm. The second is a Stewart Warner 10,000 rpm tach that I believe is called "Twin Blue." I have been moving these out of the way from shelf to shelf since 1971.

I found the St602 on ebay for $185-$299. I cannot find the SW.
What I am looking for is help on value, where would I sell these locally (don't care for ebay) and a better ID on the SW.

I cannot get the pictures below 292kb and the max allow here is 250, so, I can email the pictures to anyone interested.

I thought it might be fun to sell these and buy a gun or to trade these for a gun that I would use.

[rondog]

Might go see these folks.... http://deluxespeedometer.com/

[Ah Pook]

How about Streamline in Denver? 8th & Kalamath.