Series 1963B $1 FRNs, or Barr Notes are abundantly available in every grade from Fine to Gem. A 1963B $1 replacement note, in uncirculated condition is worth about $20, sometimes more if graded. Personally and respectfully, I would have spent a tad more to get a better example. Yours looks like it's ready to split in two from the heavy center fold and the centering is poor.