Nabisco Advertising Sign??? (Cannot find info anywhere)

[Mjphotoart]

Through the years I have looked this thing up off and on and could never find another one out there. I'm assuming it's an old advertising sign but beyond that, I have no clue. I believe it was my grandfathers, no clue where it came from or how old it is. If anybody has any info, please send it my way.
Thanks.

 

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[finderskeepers]

Looks more like a serving tray to me, than a sign. Try that within your search terms.

 

[Mjphotoart]

Looks more like a serving tray to me, than a sign. Try that within your search terms.

its 26x39"" and it seems kind of weird to be used as a serving tray, comparing to serving trays I have seen, but I could be wrong.

 

[diggummup]

It's called a self framed tin sign. It dates to somewhere near 1900, give or take a decade. It's rare and the last one sold a couple years ago at auction for $850. Read details on the left side of the screen on this link- https://new.liveauctioneers.com/item/24855938_national-biscuit-company-self-framed-tin-sign

 

[Mjphotoart]

you're awesome!!!! thank you

 

[bulletprobe]

my friend go to las vegas and see the pawn stars my friend