Here is another I need a second opinion on. Is this sign real or repop? I am newer to collecting so I’m trying to learn. I have to start somewhere. Thanks!

what size is the sign ?,

picture of back of sign please .. ...

It says 30” and double sided. Bid is $660 now so idk if it’s the real deal or not.

what is the ebay item # ? not finding it -

so we can better analyze it .. ...

402662376028

this is the 2nd 30" gulf sign seller has sold .. ...

sign appears too be orig., if not happy when received send it back -

https://www.ebay.com/itm/Old-Gulf-Double-Sided-Porcelain-Sign-/402662376028

seller is selling some questionable items:

https://www.ebay.com/sch/jryan02/m.html

I seen some fake stuff so when I see that and they say original I dont bid.

My instinct would say the Gulf signs are reproductions, but I'm not a Gulf expert by any means.......When you see the rest of the junk they're peddling, just move on.
Darin