8 - 50 Pfg help in need, 4 values complete in blocks of four, reverse block of four 3 Pfg Ebert, on DO-X card with on board confirmation mark "DORNIER airship 30 January 31" to Basle with arrival postmark Rio de Janeiro and appropriate Cachet, the left upper 8 Pfg small glueing creases, otherwise in perfect condition and pronounced decorative fixed, rare set in blocks of four, Michel for lots already 560.-