Thanks to all who have added to this post and shared their road trip stories with us. Unfortunately for us younger collectors the days of picking like this were/are pretty much over. Sure, there's the odd story here and there of a good find in an old bulk plant or a few globes or signs found in the crawl space of an abandoned station, but bulk finds like many of these discovered decades ago are nonexistent. Thanks for giving us a little bit of the thrill of the hunt in the glory days!
Darin