Looking at coins, Lincoln is the only president looking the other way from the rest of the people on the coins... Also, he's the only person on a different colored coin... Why is that? (except for the dollar coin, because there are too many different designs... the nickel only has one other design, but that wasn't until 2005...)

[Quarter]

http://z.about.com/d/coins/1/0/j/0/-/-/Rust_Quarter_Filled_Die_Obv_400.jpg

[Dime]

http://upload.wikimedia.org/wikipedia/commons/8/84/2005-Dime-Obv-Unc-P.png

[Nickel]

http://www.usmint.gov/historianscorner/images/keelNickelProof_obv.jpg

[50c]

http://www.freemanmagic.com/images/176e-Jumbo-3-Inch-Chrome-Half-Dollar-Coin.jpg

[Penny]

http://scrapetv.com/News/News%20Pages/Business/images/us%20penny.jpg

Doesn't this strike anybody as "odd"?