Just received an e-mail ad for a new book, The Fine Art of Collecting & Displaying Petroliana. Haven't seen it, but I'm expecting lots of good photos of beautifully-restored gas station signs, pumps, etc. Might be a useful resource.
Here's the site selling the book: https://www.createspace.com/3649213 (https://www.createspace.com/3649213)
(https://caps-public.s3.amazonaws.com/content/3649213/THUMBNAIL_IMAGE)
Mark