Bronze Operational Flight Clasp for Transporter in Envelope.

Zinc based and in an excellent, unworn condition with all of the bronze wash still present. The eagle with all of the dark oxidised finish. Still in the original tissue paper wrapping.
Not marked but a known variation that has been attributed to the company of Friedrich Orth from Vienna.
The fitting small beige envelope in a very good, slightly used condition. Printed on the obverse with the designation „Front-Flugspange für Transportflieger Bronze“.
Very difficult to find set in best condition.