This 1964 First Day Cover features the 5¢ John Muir Conservationist stamp issued by the United States Post Office, cancelled on April 29, 1964, in Martinez, California, with a handsome Art Craft cachet.
John Muir (1838–1914) was a Scottish-American naturalist whose advocacy helped establish the National Park Service and Yosemite National Park; he founded the Sierra Club in 1892 and his writings shaped the American conservation movement during the Progressive Era.
The Art Craft cachet depicts Muir seated on a rocky outcrop with walking staff, accompanied by the quote from William F. Badè: “His spirit still is watching over the people’s playgrounds!”—a fitting tribute to the “Father of the National Parks.”
A fine addition for collectors of conservation history, national parks topicals, or Art Craft cachets, this cover remains in clean, collectible condition with a crisp first-day cancel.
