| Worldwide Stamps and Covers |
| Albania (1) |
| Angola, airmail (1) |
| Argentina (3) |
| Austria (18) |
| Austria Post auf Crete (1) |
| Austria, Rohrpost (7) |
| Belgium (3) |
| Bohemia and Moravia (1) |
| Brazil (1) |
| Curacao (1) |
| Czechoslovakia, Rohrpost (1) |
| Denmark (2) |
| Denmark, Zeppelinpost (1) |
| Egypt (Kingdom) (2) |
| Egypt (Kingdom), airmail (1) |
| Finland (6) |
| Generalgouvernement (2) |
| Gibraltar (2) |
| Greece (4) |
| Iceland (5) |
| Iran (2) |
| Israel (3) |
| Latvia (7) |
| Liechtenstein (17) |
| Lithuania (1) |
| Malta (1) |
| Monaco (2) |
| Norway (2) |
| Oberschlesien (1) |
| Palestine (2) |
| Poland (5) |
| Russia (9) |
| Russia Post in Levante (1) |
| Salvador (1) |
| Scadta (6) |
| Spain (2) |
| Sweden (2) |
| Switzerland (10) |
| The Netherlands (1) |
| Transcaucasia (1) |
| Turkey (3) |
| Vaticane (1) |
| Zeppelin, Zeppelin Memorabilia (1) |
| Zeppelin, Zeppelin Memorabilia, sonstiges (1) |
| Zeppelin, Zeppelin Postkarten, Weltkrieg I (1) |
| Zeppelin, Zeppelinpost LZ 127, Chicagofahrt (1) |
| Zeppelin, Zeppelinpost LZ 127, Deutschlandfahrten (2) |
| Zeppelin, Zeppelinpost LZ 127, Polarfahrt (1) |
| Zeppelin, Zeppelinpost LZ 127, Russiafahrten (1) |
| Zeppelin, Zeppelinpost LZ 127, Südamerikafahrten 1 (3) |
| Zeppelin, Zeppelinpost LZ 130, Deutschlandfahrten (1) |
| Zeppelin, Zeppelinpost vor WW-I (1) |
| Zeppelin, Zeppelinpost vor WW-I, Rhein-Main (1) |