Cheapest $1 3rd print inverted on eBay right now are $300+ in circulated condition.
If graded in the AU neighborhood asking price goes to 5-6-700$

I didn't check SOLD notes...

If your note IS uncirculated, it might be worth it to send in for grading. (I know *shudder* from us chippers, but in currency it has become a necessary evil to get top dollar for your dollar)

Steve