pS92r, 10 dollars 1934.
An unissued remainder note. As your note, the one on ebay, and the one pictured above all have similar staining, it indicates that they all came from a single batch of notes, so likely to be somewhat scarce.
SCWPM specialised catalogue 11th ed. values them at 450 in fine and 1350 in XF.
I disagree with the Net grade on the ebay note – it has quite bad surface damage from exposure to moisture.
The ebay note is well overpriced.
Note: the ebay note is interesting in that it has been graded twice.
A second ebay listing has a 50 Dollar at 650
https://www.ebay.com/itm/386236441230