Kon-Tiki (Kon-Tiki ekspedisjonen)

Both English editions were 1950 club selections, so club printings circulate in large numbers. The Rand McNally issue was a Book-of-the-Month Club selection; the decisive test is that club printings lack the "A" on the copyright page. Per the general BOMC convention of the period, club copies also carry an unpriced jacket and a small blind-stamped device on the rear board, though those conventions were not documented for this title specifically in the sources consulted, so rely on the absent "A" rather than the board stamp. The Allen & Unwin issue was a Book Society choice in the UK. Later Allen & Unwin impressions state the added impression on the verso; a 1950 title-page date alone does not establish a first.