From the Dr. Bert Grayson collection.
I'm certainly no expert on ancient bows, so that question I will defer to someone who is. That is, if there is someone on this forum knowledgeable on the subject.
What was the typical draw weight Ira?
If you look up ancient Turkish bows, you will see examples like Dr. Grayson's and the ones in the Jessop collection. I believe Dr. Grayson's referral to contemporary was that the bow was recently built and not an antique.
I actually got to handle one, very much like the one in your picture, from the Jessop Collection in San Diego. They're a little hard to see in mine.