Primarily Petroliana Shop Talk Forums Shop Talk Petroliana Forums Petroliana Value Questions Gulf No Nox Ethyl price sign

What is the value of this sign? I have the price disc that goes in the center and have only found a few examples that were in a bit better shape than this. The sign is 12” round. One was probably a 9+ that sold at mecum for $900, another on ebay that was probably around a 7 for $525 both of which were sold over two years ago. The first picture is the $900 example, second is the $525 example, third and fourth are of my sign that I purchased.