My mom recently gave me a $1 with the last two digits in the serial number 88, because it was the year I was born. The actual serial number is F F70701788 F. I also have the one before it, F 70701787 F. I thought nothing of this really, other than a keep sake, until I looked at the date. It said Series 2003 A. I had to do a double take because I had never seen a 2003 A series dollar before. I have seen tons of 2003, but never a Series A. Whats the difference between a regular 2003, and a 2003 A?

Look at the signatures on the note, the 2003 A is different from the 2003 because of the signatures on the note.

I noticed that too. Is the 2003 worth more than the 2003 A or vice versa? Or are they both just worth a buck? I just thought that it was intresting because these two $1 bills were the only two that I have ever seen that were 2003 Series A.

They are both worth $1. The letter is added to the series when the Treasurer changed. If the Treasury Secretary changed I think it would require a whole new series like 2005.

Lol, I guess they are just getting to where I'm at. Because they were the first that I noticed, and I got 2 more today. But I have only gotten them in $1 bills, havent seen a $5, $10 or $20 Series A yet.

I believe you will eventually see 2003 A $5 notes, but the $20 would be 2004A since there was no series 2003 in $20 notes. For the $10, since there is a complete redesign for next year it will probably be series 2006. Those are purely my educated guesses, so if anyone has researched it with the BEP, please chime in!

I stand corrected! I just read in Coin World that the new $10 will be series 2004A.