This is for a US 511th Parachute Infantry patch. The patches in this collection were glued to card stock for display. They may still have some glue and bits of card stock on the back as shown.
You can remove most if not all of this with a little time and patience. It does not glow under black light. I have many WWII patches currently listed for sale. The item "WW2 US Army 511th Parachute Infantry Regiment Boots Patch WWII Cut Edge" is in sale since Tuesday, April 9, 2019.
This item is in the category "Collectibles\Militaria\WW II (1939-45)\Original Period Items\United States\Patches". The seller is "coreycorey2000" and is located in Sarnia, Ontario. This item can be shipped worldwide.