Vintage Slide Rule-21031206mm

 What can I say? It is a slide rule. It is old because hand-held calulators were available when I was in graduate school in th 1970's. I thought all these slide rules had become firewood.

The photos will have to tell you the rest of the story because I could not use this gem if my life depended on it. I'm old but I think this thing is older than me. 

It measures 12" and then there is that slide thingy that extends out. 

I'm looking for someone that collects antiquities. 

Shipping included within the USA.