Published Luftwaffe Pilot Badge in Envelope. Maker BSW.

Zinc based and in a very good, probably unworn condition. The wreath with all of the silver plate and some patina. The eagle with all of the dark oxidised finish and attached to the wreath with two small rivets.
Marked on the reverse of the eagle with „BSW“ in a clover leaf for the company of Brüder Schneider from Vienna.
The fitting large brown envelope, in a very good, slightly used condition. A small tear near the flap at the top. Printed on the obverse with the designation „Flugzeugführer-abzeichen“ and on the reverse with the maker „Brüder Schneider A.G. Wien VI“.
The set published in the book by Sebastian Talbot, The Luftwaffe Pilot Badges on p. 503
Rare chance to add a reference piece to the collection. We believe this is the only known example of a Pilot Badge envelope from BSW workd wide.