Issuing Country: United States
Date of Issue: October 28, 1970
Scott Catalogue Number(s): 1410-1413 (1413a)
Description: This issue, a mint block of four stamps, emphasized the importance of our ecology. The stamps are inscribed "Save our Soil," #Save our Cities," "Save our Water" and "Save our Air." Each stamp design includes a view of the Earth. Also featured is a wheat field, a city with a playground in the foreground, a fish and a bird.

Issued by the U.S. Postal Service on June 27, 2002, this mint sheet of 20 self-adhesive stamps features "Scarlet and Louisiana Tanagers," by John James Audubon. The 2015 Scott Catalogue value for this sheet is $27.50. Scott Cat.# 3650

Issuing Country: United States
Date of Issue: September 24, 2016
Scott Catalogue Number(s): 5136
Description: Issued to pay the USPS First Class plus non-machinable surcharge rate, this mint self-adhesive stamp (on original backing paper) features the Eastern Tailed-Blue Butterfly.

Issuing Country: United States
Date of Issue: June 1, 2015
Scott Catalogue Number(s): 4991-4994
Description: This item is a strip of four self-adhesive postcard rate stamps featuring graphic designs of the following coastal birds: King Eider, Red Knot, Frigatebird and Spoonbill.

Issuing Country: United States
Date of Issue: June 1, 2015
Scott Catalogue Number(s): 4991-4994
Description: Yhis item is a plate number block of four self-adhesive postcard rate stamps featuring graphic designs of the following coastal birds: King Eider, Red Knot, Frigatebird and Spoonbill.

Issuing Country: United States
Date of Issue:June 1, 2015
Scott Catalogue Number(s): 4989
Description: This attractive mint, self-adhesive stamp (on original backing paper) features two Emperor penguins, the largest of the penguin species. Issued by the U.S. Postal Service to pay the "additional ounce" rate.

Issuing Country: United States
Date of Issue: June 29, 2007
Scott Catalogue Number(s): 4156d (4153-4156)
Description: This mint, double-sided booklet pane of 20 self-adhesive stamps recognizes pollination. In addition to flowers, the stamps feature Morrisons Bumblebees, a Calliope Hummingbird, a Lesser Long-Nosed Bat and a Southern Dogface Butterfly. There are five copies each of four different stamp designs (in two arrangements that produce two different block of four continuous designs).

Issuing Country: United States
Date of Issue: July 26, 2017
Scott Catalogue Number(s): 5223-5227 (5227a)
Description: This mint pane of 20 self-adhesive Forever stamps celebrates the wonder of sharks (four copies each of five different designs). The following five species are represented: Mako Shark, Whale Shark, Thresher Shark, Hammerhead Shark and Great White Shark.

Issuing Country: United States
Date of Issue: August 3, 2017
Scott Catalogue Number(s): 5228-5232 (5232a)
Description: Issued to pay tribute to the vital role insect pollinators have in plant reproduction and our ecosystem, this mint pane of 20 sefl-adhesive stamps features bees, butterflies and flowers. The pane includes four copies each of five different stamp designs.

This 1978 Wildlife Conservation Issue highlighted four species of owls native to the United States: the Great Gray Owl, the Saw Whet Owl, the Barred Owl, and the Great Horned Owl. This attached block of four mint stamps was issued on August 26, 1978. Scott Cat.# 1760-1763

Issuing Country: United States
Date of Issue: February 22, 2018
Scott Catalogue Number(s): 5264-5273
Description: This mint pane of 20 self-adhesive stamps features ten different vibrant photographs (two copies of each) of organisms that generate their own light via bioluminescence. Eight of the organisms are from the ocean depths; two are terrestrial (firefly and mushroom). This pane was produced using a proprietary rainbow holographic material that is highly reflective in white light (not obvious in our scanned image; a very attractive stamp pane.

Detailed depictions of 16 insects and 4 spiders are featured on this colorful pane of 20 mint stamps. An inscription on each stamp identifies the depicted insect or spider. Designed by Carl Herrman, this sheet was released by the United States Postal Service on Oct. 1, 1999. Scott Cat.# 3351