These bows are backed with 3 layers of leg sinew the last yew bow has 1 thick layer I normally use the back sinew for bowstrings
Thanks for all the great replies I appreciate it, I am a member of the Atsugewi band Pitt River tribe I enjoy sharing my culture with others
I do not have any updated pictures but here is a picture of the 37 inch bow, I am uncoftorable with leaving these bows at full draw while I take pictures so it was pulled to 20 inches