It was 1977. My father came home from work one day and handed me this note. He said he got it from the bank . He nor I were currency collectors but knew it was something special . I held on to it into the 1980's when I got my first Currency price book . I was amazed to find the exact thing in the back . It's a 1977A " Offset transfer " Error . It's a front on back 100% Medium ink . That's about all I have . Oh, it's a sentimental thing since he's since passed . Also, I believe the smudge is his . This Note has no creases, folds or tears. It's in EF condition ( approx. ) Questions ? I do. what's it worth.