I had some doubts on some items at this auction (Showtime Auction Services on liveauctioneers web-site). I was looking at some non-petro signs and had some concerns. I am not an expert on all signs (especially non-petro stuff).
One example is a sign I was looking at (Detroit Free Press sign) which is also being sold by Rustyrelicsart on ebay. Some other signs were also raising a flag in my opinion.
This is just my opinion and I could be wrong. And you should use caution when buying any sign.https://new.liveauctioneers.com/catalog/100456_showtimes-spring-auction-2017-1st-session?page=4