My grandfather has come across a 48 starred flag made of crepe fabric. He has never seen a flag made of this material and is wondering if it's anything unique or special. The flag belonged to a fellow member of his VFW post who recently passed away. The flag is being donated to their town museum and they want to make sure they include any special information when it is displayed. If anyone knows anything about the history of Crepe flags please share your knowledge or resources with me. Thank you.