Fantastic Peter! Thank you for posting these. I have long hoped we would get back to this most esoteric topic and the opportunity to discuss these people and thier weapons.
Gav, the book published by the Smithsonian is "Ainu: Spirit of a Northern People" , William W. Fitzhugh, 1999, and is on the material culture displayed in the exhibit my that name at the National Museum of Natural History there. ..Arctic Studies Center. It is found online under that title.
Looking forward to this one!!!
All the best,
Jim