LZ129-005D : 1980 - Postal Stationary USA "Commemoration Age of Airships" autographed

N°LZ129-005D : Postal Stationary USA 15c "Commemoration of the Age of Airships" 1980 :

Postmarked in Cedar Rapids "Airship Era" (USA) dated April 12, 1980

Autographed envelope by Mr. Fritz GRÖZINGER, gas fitter on Zeppelin LZ127 and Zeppelin LZ130.

EXTREMELY RARE