Scott No.: 512c
Set: Nature Protection
Date of Issue: February 19, 1974
Scott No.: 587
Date of Issue: May 2, 1979
Europa 1979, Postal History
The frog stamp on here is below (B520).
Scott No.: 1060-61
Date of Issue: October 10, 2000
See also: First Day Cover
*Scott No: 1256e
Date of Issue: October 4, 2006
Set: Endangered Animals
Species: Blue Poison Dart Frog (Dendrobates azureus)
*Scott No.: 1558
Date of Issue: January 2, 2018
Set: Reptiles and Amphibians
Species: Natterjack Toad (Epidalea calamita), Tree Frog (Hyla arborea), Fire-bellied Toad (Bombina variegata), Moor Frog (Rana arvalis), Common Spadefoot Toad (Pelobates fuscus)
According to the PostNL webste: "PostNL will be issuing the new ‘Experience nature’ stamp series this year. There will be a ten-stamp sheetlet for each season. On 2 January 2018, the first stamps for winter will be appearing, devoted to reptiles and amphibians. The other seasons will follow in April, June and September, featuring wildflowers, insects and mushrooms respectively."
*Scott No.:
Date of Issue: August 14, 2023
Set: Forests and Fens
Species: Brown Frog
From Netherlands Post: "The stamp sheet about the Oisterwijk Forests and Fens is part of the multi-year series Experience nature 2021-2023.
The issue Experience nature - Oisterwijk Forests and Fens of August 14, 2023 focuses on the forests and fens of this nature reserve near Oisterwijk, in the province of North Brabant. The following 10 inhabitants of this nature reserve are depicted on the stamps: king fern, kingfisher, water purslane, small newt, red damselfly, black woodpecker, brown frog, tufted duck, long-tailed tit and wild gale. They play the leading role on their stamps. The stamp sheet contains even more images of characteristic flora and fauna from this area. These are shown in a separate graphic layer as monochrome images: brown frog (top left), swamp deer hay (top right and bottom center left), wild gale (center left), red squirrel (center right), small newt (bottom center) and long-tailed tit (below right)."
*Scott No.:
Date of Issue: November 14, 2023
Set: Forests and Fens
Species: Brown Frog
Scott No.: B223
Date of Issue: November 13, 1950
One of five stamps issued to aid needy children.
Scott No.: B520
Date of Issue: April 6, 1976
Set: WWF
Species: Green Marsh Frog
See also: Maximum Cards, First Day Cover
According to the card in the FDC, the 25c surcharge went to the WWF. Fun fact: the Green Marsh frog makes a sound like a human laugh.
Scott No.: B567
Date of Issue: November 11, 1980
Scott No.: B697
Date of Issue: November 6, 1996
Set of three issued for child welfare.
This stamp actually kind of creeps me out . . .
Scott No.: B710
Date of Issue: November 11, 1998
Set: Child Welfare