- | 40c | multi | "Graf Zeppelin" (Airship), 1929 |
- | 75c | multi | ||||
- | $4 | multi |
- | $6 | multi | Hugo Eckener |
- | $6 | multi | Airship LZ-129 "Hindenburg", 1936 | — | — |
- | $6 | multi | — | — |
- | 10c | multi | ||||
- | $4 | multi | ||||
- | $6 | multi | — | — |
- | 45c | multi |
- | $1 | multi |
- | $1.50 | multi | ovpt, rain forest, p. 14.25 | |||
- | $2 | multi | ovpt, endangered tiger, p. 14.25 | |||
- | $6 | multi | ovpt, monarch butterfly Danaus plexippus | — | — |
- | $2 | multi |
- | $2 | multi |
- | $2.25 | multi |
- | $3 | multi |