I just posted 2 listings on EBay for 2 Books on the Indian Motorcycle.
1) The Iron Redskin by Harry V. Sucher , 1984 (Item ID # 190739748976 )
2) Classic Indian Motorcycle - A History of the Marque 1901 - 1953 by John Carroll & Garry Stuart
(Item ID # 190739824384)
My Ebay seller ID is vt281982.
Thanks for looking & your interest !