Zeppelin -- 1929 St. Petersburg, FL, cover "retour" to sender This cover was returned to sender with a typed notation on the back that it was refused because "Airship Graf Zeppelin does not fly in the next months". Probably had cover inside to make the actual flight as postage on this cover was insufficient. German refuse sticker on front with retour mark. Interesting zeppelin collateral piece. (Image1)

Est. 50

Zeppelin -- Roessler Goodyear Zeppelin ZRS-4 Ring Laying cover November 7, 1929 Akron Ohio cachet cover. Clean. (Image1)

Est. 0

Zeppelin -- United States - C-18 on New York Century of Progress First Day Cover Clean cover with strong markings. (Image1)

Est. 0

Zeppelin -- United States - C-18 on Akron Century of Progress cachet cover Linprint cachet on Akron-Chicago-Akron cover. (Image1)

Est. 0

Zeppelin -- United States - C-18 on Miami Century of Progress First Day Cover flight Clean First Day Cover (Image1)

Est. 0

Zeppelin -- United States - Two 1936 Lakehurst Hindenburg flight covers Variety of stamps. Stamps are damaged on smaller cover. (Image1)

Est. 0

Zeppelin -- United States - 1928 First Graf Zeppelin Flight between US and Germany cover Nice array of stamps on cover. Clean. (Image1)

Est. 0

Zeppelin -- United States - 1928 First Graf Zeppelin Flight between US and Germany cover with letter Plate number single #571 and C-11 airmail frank this cover. Letter is from New York office of Wile & Blum to London office. (Image1)

Est. 0

Zeppelin -- United States - 1930 South America flight cover Multiple stamps adorn this large cover. Mailed from US to an address in Germany. Fun cover. Two holes punched at bottom for storing in a binder. (Image1)

Est. 0