The United States Postal Service has announced plans to issue postage stamps featuring photographs taken by Linda McCartney, the photographer and animal rights activist who was married to Beatles musician Paul McCartney until her death in 1998 at age 56.

A first-day-of-issue ceremony for the stamps will be held on Sept. 25 at 11 a.m. ET at the Museum of Modern Art in New York. The pane of 20 stamps will showcase five different photographs, described by the USPS as featuring her nature and still-life photography. The stamps were designed by Derry Noyes, a USPS art director. Rolling Stone reported that the collection includes images of sunflowers and a teapot, and that stamps will be available for purchase at USPS branches the same day.

The USPS described Linda McCartney as a pioneering photographer and animal rights activist who was a pivotal figure in the vegetarian movement. In a statement, the postal service said: "Linda McCartney rose to prominence by capturing some of the most memorable musicians of the 1960s in photographs that felt relaxed, intimate and full of life."

McCartney's career in photography began in the mid-1960s. According to Rolling Stone, she was drawn to photography while attending the University of Arizona, and later, working as a receptionist at Town and Country, she used an unwanted invitation to gain entry to a Rolling Stones event and photographed the band. Those images impressed the magazine's staff and were published in an editorial spread, launching her career. She went on to photograph rock & roll figures including Eric Clapton, the Doors, Otis Redding, Jimi Hendrix, and Frank Zappa, as reported by Rolling Stone.

Her 1968 portrait of Eric Clapton made her the first female photographer to have her work featured on the cover of Rolling Stone magazine. In 1974, she posed for the cover of Rolling Stone alongside her husband Paul, as Rolling Stone noted. More broadly, McCartney photographed her husband, their children, animals, and small moments of everyday life, according to reports from several outlets. Her photographs have been exhibited throughout the United States, as well as at the Royal Photographic Society and the Victoria and Albert Museum in England, according to the USPS statement cited by multiple outlets.

McCartney, born Linda Eastman in 1941, married Paul McCartney in 1969 and took his name. Rolling Stone reported that in 1970, her photograph of a bowl of maraschino cherries appeared on the cover of his first solo album—and that same image is among those featured on the new stamps. The couple released the album "Ram" in 1971 as Paul and Linda McCartney, and later that year co-founded the band Wings, with Linda on keyboards. Wings released seven studio albums over the decade, according to Rolling Stone.