HARPER'S NEW MONTHLY MAGAZINE, New York, December, 1866  This issue carries the first appearance of Mark Twain in a national magazine with the story "Forty-Three Days In An Open Boat. Compiled from Personal Diaries".
Also within the issue is "Ballad of Uncle Joe"; "A Reminiscence of Sleepy Hollow" and many more and illustrations.
This contains 136 pages, without outer wrappers, measuring 9.5 x 6.5 inches, and is in good condition.