No, it's not worth keeping. You need to have some of another note starting to show in the boarder to have any sort of premium. In addition, your note has a lot of wear through the portrait, along the crease and it has a counterfeit pen mark. If it was a $1 note in better condition, I might be tempted to save it even though it really isn't worth more than face, but I couldn't afford to tie up $100 in something that will always be worth $100.
Check the very bottom of the reverse margin, the top of the next note might be there, and then it is worth keeping. When I copied your note, oriented it correctly and enlarged it, there seems to be a wisp of the next note on the very bottom of the reverse margin. But I can't tell because of the loss of clarity in the enlargement. But you have the note in hand and can look at it under a bright light with some magnification to check.
OK. Like I said I couldn't tell because of the enlargement/ pixels. The margin seemed thick enough for something. But paddyman makes a good point if it was the last note on the sheet, there can't be another even though it's so thick. Regretful spender.
