Followed by the Kingdom of Bavaria with 10. Followed by the Kingdom of Saxony with 7 and finally the Kingdom of Wurttemberg with 4.
Over the 40 years of collecting European Militaria I've only seen a few Bavarian Pilots Badges and never one in Silver (see photos). This is an extremely rare item for a collector of Imperial German Flight Badges. Pictured in the listing is Eduard Ritter von Schleich who was a top ace from the Kingdom of Bavaria wearing an identical Pilots badge below an Iron Cross first class and a Pour le Merite on his neck. I have several German Army and Navy Pilots Badges some of which are engraved to the Pilot listed separately as well as a Bavarian Air Force Observers badge in the original jewelers box. There is a similar pilot's badge listed separately on another site at more than double the cost. The Bavarian Officer's Visor Caps is NOT included and listed separately.