*Scott No.: 844
Date of Issue: June 5, 1998
Set: Fragile Forest
Species: Suriname Horned Frog (Ceratophrys cornuta)
Scott No.: 911
Date of Issue: October 13, 1999
Set: Amphibians and Reptiles
Species: Copper-cheeked Frog (Hylarana chalconota)
Scott No.: *1133, 1136a
Date of Issue: March 30, 2005
This set was issued to mark the bicentennial of the birth of Hans Christian Andersen (1805-1875). The frog stamp illustrates "Thumbelina", who thinks the toad is too ugly to marry but gets a taste of her own medicine when the butterflies think the same of her!
Scott No.: 1156 (frog on *1156i)
Date of Issue: August 9, 2005
This series, "Fabric of the Nation" was issued in 2005 on the 40th anniversary of Singapore's independence from Malaysia, with which it had merged in 1963, about three weeks after its independence from Great Britain.
The frog is the fifth one down in the far right column
Scott No.: 1234c
Date of Issue: October 28, 2006
Species: Black-spotted Sticky Frog (Kalophrynus pleurostigma)
Scott No.: 1482, 1483
Date of Issue: April 13, 2011
Species: Common Green Frog (Rana erythraea), Common Toad (Bufo melanostictus)
See also: First Day Covers
Scott No.: 1931
Date of Issue: October 17, 2018
Set: Nursery Rhymes, "Jump, Frog, Jump"
Scott No.: 2024
Date of Issue: August 3, 2020
Set: Singapore Mascots, Captain Green