Federal Reserve Note Error $1

[mjm579]

My dad has had this note for years. I don't know much about note errors, so I thought I could consult my coin experts for some guidance. I put a picture of the front. The error is on the reverse. Thx in advance.

 

[Wickaboag]

Wow, thats an amazing error if it's real!
Hope you got a gold mine there!
Wicka

 

[sagittarius98]

Post it here:

Paper Currencies

 

[omga747]

I believe that is a wet ink transfer error. Definitely some value, but I don't know how much