Pennant materials

[Hankphenom]

Thanks, Greg, this is the pennant that made me wonder. This is obviously an older pennant, probably 1940s, but seems to be made from a stiffer material than I would have thought from that time. You can see the creases from being folded over the years, and a softer "felt" or "wool" wouldn't do that, I don't think. It just raised the question in my mind if one of you experienced pennant guys had a fix on what era pennants were made of what. I've always loved them, and have collected and sold many over the years, but I just never paid that much attention to their composition. I bought this one for a friend for Christmas and wondered if the material would offer a clue as to the period of issue. The graphics look like 1930s to me, but of course the pennant could have been made any time. Thanks for your help, I really appreciate it.