What is this? An autograph card from 2007 Allen & Ginter, card AGA-NL.
Where'd I get it? An eBay auction.
How much did it cost? Very little, maybe a buck.
Why is this so special? Anyone named Nook is special by default. I got this at the same time as the 2006 Allen & Ginter Lew Ford autograph as a type card for my A&G set. Both cards were extremely inexpensive and I believe this sold for the opening bid of 99 cents. This is actually a typical autograph for Logan. Nook was not offered a contract by the Nationals due to their acquisition of Lastings Milledge and Elijah Dukes, and is currently a free agent.
I'm only putting autograph-related links in this blogroll. However, if you have a blog or a collector site not specifically about autographs, but with an autograph page or an "autograph" label on your blog posts, I'll put that link here.