German WWII Luftwaffe Medical Set of Collar Tabs

German WWII Luftwaffe Medical Set of Collar Tabs-This collar tab set would have been worn by a Captain in the Luftwaffe Medical Services. It shows three silver bullion eagles over oak leaves and piped in the same silver bullion. These are hand embroidered onto a blue badge cloth. The cloth is loose on the back. Someone has written 3.25 on the reverse of one of the tabs. We are unsure of the purpose of this. These are in very good condition.