Russia Zeppelin stamp, 1930, 40k. & 80k. Airship Flight and Poster "Five Year Plan in Four Years". Two blocks of 4, used: 40 Russian kopek Mi. 390B Perf 10½ , Sn:SU C12a, Yt:SU PA20(B), Sg:SU 574a. And 80 Russian kopek  Mi # 391A  Perf 12½ in.,  Sn:SU C13, Yt:SU PA21(A), Sg:SU 575.