Not photographs, but of you can find a copy of Jim
Hamm's and Steve Allely's "Encyclopedia of Native American Bows, Arrows, and Quivers" Volume 1, there are several very good drawings of bows and arrows on pp 58-62, including a beautiful scalloped bow. This first volume is still available, I believe, from Jim himself at Bois d' Arc Press or Amazon. Volume 2 is scarce as hens' teeth and out of print.
Best regards,
Russ