Patricia Roberts Harris (May 31, 1924 – March 23, 1985) served in the American administration of President Jimmy Carter as United States Secretary of Housing and Urban Development, and United States Secretary of Health, Education, and Welfare (which was renamed the Secretary of Health and Human Services during her tenure). She was the first African American woman to serve in the United States Cabinet, and the first to enter the line of succession to the Presidency. She previously served as United States Ambassador to Luxembourg under President Lyndon B. Johnson, and was the first African-American woman to represent the United States as an ambassador.
These are real USPS postage stamps that are accepted by the Postal Service as payment for mail however the rates on the stamps must equal or exceed the current appropriate postal mailing cost or extra postage must be paid for if using them for mailing.
The stamp set shown in the picture is a stock photo and is likely not a picture of the exact stamp set you will receive in that it may differ in plate number and/or orientation. However the item you will receive will be similar including having a plate number (if one is present in the photos) and the same number of stamps.