CLEMENS, Samuel L. ("Mark Twain," 1835-1910). The Celebrated Jumping Frog of Calaveras County. New York: C.H. Webb, 1867. 12mo. 1-page publisher's advertisement at front. (5 leaves with small ink stain upper corner, a few minor spots or stains.) Publisher's brown beveled cloth, gilt frog in lower left corner of front cover, blind impression at lower left corner of the rear cover, gilt-lettered on front cover and spine (some light rubbing, spine ends and tips of corners discreetly repaired); quarter morocco folding case. FIRST EDITION, FIRST ISSUE, with the leaf of ads and unbroken type on pages 21, 66, and 198. BAL 3310.