Yeah those are cool. I bought my first one for $5.00 and they have been going up ever since. I have a year specific one for my '66. I think I paid $35 for that one. There is a lot of info in a little package. Specs and tolerances for just about everything mechanical...
$35!

Wow, I think I only ever paid $2–3 for any of them, and many were just throw outs from dealers. Hmmm, I'd better dig mine out and put them on eBay!
