Theres the obvious gutter fold error splitting Washingtons head, as well as a very minor gutter fold error running through the seal
@Fk9 welcome to CT. If you are looking to sell your note, I believe getting it certified by one of the third party graders would help bring more value in an auction. I've seen notes like this go for hefty sums at BK Auctions.
Gutter folds through the portrait are the most desirable. The OP’s note isn’t in the best of shape but it is a replacement note. Cool note. Get it into a quality currency sleeve and enjoy ownership. I have one with a little more of a dramatic fold but it misses the portrait.
Why is there a piece of something running along the GF in the OP? It looks as if someone tried to repair it. Look at the very top of the GF where there is separation, IDK what's going on there at all.
It definitely doesn't look like someone "tried to repair it", it's a line of ink. I'm not overly familiar with gutter folds, so dont know if that line iis actually something markedly atypical or not..
@Fk9, are you able to photograph the note with the fold closed ? This is my note with the gutter fold folded.