Socialist Republic of CZECHOSLOVAKIA
stamp: 1 koruna
year: 1983
amphibian: frog – Rana esculenta
Arhiva
# 383 – VIETNAM / 8, amphibian
Socialist Republic of VIETNAM
stamp: 500 đong
yaer: 1991
amphibian: frog – Mantella aurantica
# 369 – SWITZERLAND / 5, amphibian
Confederation of SWITZERLAND
stamp: 90 + 45 rappen
year: 1997
amphibian: frog
# 349 – BELGIUM / 4, amphibian
Kingdom of BELGIUM
stamp: 17 francs / 0,42 €
year: 2000
amphibian: frog
# 289 – TANZANIA / 8, amphibian
United Republic of TANZANIA
stamp: 300 shillings
year: 1996
amphibian: frog – Hyperolius cinctiventrus
# 247 – VIETNAM / 7, amphibian
Socialist Republic of VIETNAM
stamp: 3000 đong
year: 1991
amphibian: frog – Hyla aurea
# 219 – CZECHOSLOVAKIA / 3, amphibian
Socialist Republic of CZECHOSLOVAKIA
stamp: 3 korun
year: 1989
amphibian: frog – Bombina variegata
