What an amazing quilt, no matter what the fabric has on it. I would say treasure it and keep it safe. If you look at most artdeco building in cities that were built before WWII then you will see the swastika or broken cross. In the KC area there are at least 4 that I know about. Probably more that I don't. If you store the quilt you should type up a paper on the meaning and history that you can find on the quilt. This way those in the future will know the history and might not have a knee jerk reaction to destroy it.