Many of those signs that Fridays had are kind of hard to tell that they are reproductions. They have infiltrated the collectors market and are spread around. When you see a bunch of them together you can tell they are a gimmick but when you see one by itself its easy to get sucked in. They had a lot of them that you wouldnt imagine would be duplicated. Hotel signs with room rates. Young Ladies finishing school ect.... Painted on tin. Various medium sizes, like 2foot by 3 foot.
I stayed far away from bidding on any sign if I had any doubt it was real. A bidder know to me did bid on many of the items that looked legit to him. Only days later they appeared in his space within a local antique mall marked at high prices.
The sleeper of the auction was a GULFFLEX sign made with blue porcelain letters mounted on two rails. I was the only bidder. I guess nobody in the room knew what GULFLEX was.