Ink Error On Serial Number Of $2 Bill?

Pics have been posted.

checking on some of my other $2 bills, it seems it is isn't an error, but just it being crisp uncirculated.

"Ink bleed through" is the most common of all banknote errors, especially faint ones. (which doesn't make them any less interesting!) However, it does happen way more often than most realize. In fact I'm willing to bet a lot of newbie collectors have handled a faint bleed through without noticing. Very thick can be worth a pretty penny though.

Here is a faint bleeder I found a month or so ago.

Of America bleeds from the lower obverse into the reverse. Also along the reverse edges there is ink from the front as well. It is somewhat difficult to see in this pictures but in real life the detail is quite noticeable.