'$300 on a good day?'
...ehh, I have to disagree...I think the frame/base would be worth at least $200 to someone who had a nice sign for it...and the sign alone would bring $200-250 to a even casual collector...I mean, it's got 'Texaco' on it...together, maybe a little more...I think there are plenty of people who would give $500 or a little more for the sign, as shown...
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the future of our hobby will logically trend to authenticity; historically accurate restoration & preservation of memorabilia should be paramount...