Here's how to play: Every morning I will review the entries (one per person per day) and reply to each post with the number of correct numbers that are in the correct position. The first person to post the correct serial number will receive the dollar! It's not in too good a condition but I hate to spend Stars!
What's the deal? Either I got stupider or the site just got smarter than I am... I guess you'll have to click on the attachment to view the prize, the dollar with 8 question marks over the serial number.
Magman has a great reference page here for printages. He's up to Series 2006 notes. Numbers also has a great reference site here