07/03/1986
https://www.presidency.ucsb.edu...
"The Duck Stamp quickly caught on with duck hunters, corporations, and conservation groups of all kinds."
"For five decades, you, the sportsmen and conservationists, have been buying Duck Stamps and have been giving our nation a gift of beautiful wetlands and flourishing wildlife."
"I believe we can expect to see more and more Americans join in your tradition of giving."
"Today we join in honoring the 50th anniversary of one of the most successful and popular of all Federal wildlife conservation programs."