The U.S. Postal Service issued the Harvey Milk Forever stamp in a dedication at the White House in May.
Available in sheets of 20 stamps, the stamp image is based on a circa 1977 black and white photograph of Milk in front of his Castro street camera store in San Francisco taken by Daniel Nicoletta of Grants Pass, Oregon.
Antonio Alcal of Alexandria, Virginia, was art director for the stamp.
The Harvey Milk Forever stamps are available at post offices nationwide, at: usps.com/stamps or by calling (800) STAMP-24.
Harvey Milk (1930-1978) was a visionary leader who became one of the first openly gay elected officials in the United States when he won a seat on the San Francisco Board of Supervisors in 1977.
Milk's achievements gave hope and confidence to the Lesbian, Gay, Bisexual and Transgender community in the United States and elsewhere at a time when the community was encountering widespread hostility and discrimination.
Milk believed that government should represent all citizens, ensuring equality and providing needed services.
His political career was tragically cut short less than a year after he took office in California when he and San Francisco Mayor George Moscone were assassinated on Nov. 27, 1978.
In 2009, Milk was posthumously awarded the Medal of Freedom by President Barack Obama.
Customers may view many of this year's other stamps on Facebook facebook.com/USPSStamps, Twitter@USPSstamps, Pinterest pinterest.com/uspsstamps, Instagram instagram.com/uspostalservice or on uspsstamps.com, the Postal Service's online site for information on upcoming stamp subjects, first-day-of-issue events and other philatelic news.
Phil Wiebold is a spokeswoman for U.S. Postal Service.