This was a trivia question a while ago. There's actually 2 - the one outside Lincoln's home in 1860 after his nomination and another after a court case in 1858. Someone also posted a sketch of Lincoln that was made at the Soldier's Home of Lincoln wearing a white suit.
"There are few subjects that ignite more casual, uninformed bigotry and condescension from elites in this nation more than Dixie - Jonah Goldberg"