![YS1979 - 1979 Commemorative Stamp Year Set YS1979 - 1979 Commemorative Stamp Year Set](https://cdn11.bigcommerce.com/s-9xwo1raw7u/images/stencil/500x659/products/80943/61652/USA-YS1979__67371.1711067513.jpg?c=1)
1979 15c Endangered Flora: Persistent Trillium
# 1783 - 1979 15c Endangered Flora: Persistent Trillium
$0.35 - $2.95
U.S. #1783
1979 15¢ Persistent Trillium
Endangered Flora
1979 15¢ Persistent Trillium
Endangered Flora
Issue Date: June 7, 1979
City: Milwaukee, Wisconsin
Quantity: 40,763,750
City: Milwaukee, Wisconsin
Quantity: 40,763,750
Printed By: Bureau of Engraving and Printing
Printing Method: Photogravure, Andreotti Press
Perforations: 11
Color: Multicolored
This stamp is part of a se-tenant issue showcasing four of the more than 1700 plant species likely to become extinct if threats to their existence are not removed. The stamps were issued during the National Convention of the Garden Clubs of America.
U.S. #1783
1979 15¢ Persistent Trillium
Endangered Flora
1979 15¢ Persistent Trillium
Endangered Flora
Issue Date: June 7, 1979
City: Milwaukee, Wisconsin
Quantity: 40,763,750
City: Milwaukee, Wisconsin
Quantity: 40,763,750
Printed By: Bureau of Engraving and Printing
Printing Method: Photogravure, Andreotti Press
Perforations: 11
Color: Multicolored
This stamp is part of a se-tenant issue showcasing four of the more than 1700 plant species likely to become extinct if threats to their existence are not removed. The stamps were issued during the National Convention of the Garden Clubs of America.