14-8-6

14-8-6.Karen from the AAF Tank Museum says that this gray felt patch has a black border, red shield and a white center stripe. What is it?Do you know what this item is?
If you do, simply drop us a line at WHATiZIT, c/o Military Trader, 700 East State St., Iola, Wisconsin 54990-0001 or send an email to john.adams-graf@fwpubs.com. Please include the item number in your response.