Science
![Liechtenstein 1937](/image/52698/base250X250/liechtenstein-1937-flugpost-10-plus-50-rp-schaan-liechtenstein-5-ii-37-nachnahme.jpg)
Liechtenstein, Michel 135 + 144 + 147, Cover
1937. FLUGPOST. 10 + 50 Rp. SCHAAN (LIECHTENSTEIN) -5. II. 37. Nachnahme Frs. 2,- in Sweden: Pf 1 Kr. 84 öre to Helsingborg, Sweden.
![Liechtenstein 1939](/image/52700/base250X250/liechtenstein-1939-flugpost-10-plus-15-plus-20-plus-30-plus-50-rp-triesenberg.jpg)
Liechtenstein, Michel 173-177, Cover
1939. FLUGPOST. 10 + 15 + 20 + 30 + 50 Rp. TRIESENBERG (LIECHTENSTEIN) -5. IV. 39. to Västerås, Sweden.
![Liechtenstein 1958](/image/52704/base250X250/liechtenstein-1958-baume-20-plus-50-plus-90-rp-fdc-vaduz-12-viii-58-to-klippan.jpg)
Liechtenstein, Michel 371-373, Cover
1958. BÂUME. 20 + 50 + 90 Rp. FDC VADUZ 12. VIII. 58. to Klippan, Sweden. Nachnahme Fr. 6,45
![Liechtenstein 1959](/image/52705/base250X250/liechtenstein-1959-baume-20-plus-50-plus-90-rp-plus-pius-xii-30-rp-fdc-vaduz-15.jpg)
Liechtenstein, Michel 377-380, Cover
1959. BÄUME. 20 + 50 + 90 Rp. + Pius XII 30 Rp. FDC VADUZ 15. IV. 59. to Klippan, Sweden. Nachnahme Fr. 7,60
![Liechtenstein 1957](/image/52708/base250X250/liechtenstein-1957-baume-10-plus-20-rp-plus-1-fr-fdc-vaduz-10-ix-57-to-klippan.jpg)
Liechtenstein, Michel 357-361, Cover
1957. BÄUME. 10 + 20 Rp. + 1 Fr. FDC VADUZ 10. IX. 57. to Klippan, Sweden. Nachnahme Fr. 3,20