フィラデルフィア美術館さんのインスタグラム写真 - (フィラデルフィア美術館Instagram)「Our pets may have gotten more love than ever this year, but an extra treat today won't hurt—they deserve it. Happy #LoveYourPetDay! "Young Woman Fastening a Letter to the Neck of a Pigeon," around 1760, attributed to Johann Christian von Mannlich. “The Courtesan Usugumo Holding a Cat,” around 1876, by Tsukioka Yoshitoshi. "Billie Holiday with Her Dog, Mister," March 23, 1949, by Carl Van Vechten. “Portrait of John Bee Holmes (Boy with Squirrel),” 1765, by John Singleton Copley (On loan from The Dietrich American Foundation). "Girl with a Goldfish," 1960s, by Tana Hoban. “Phyllis with a Lamb,” 1780s–90s, by Bartholomäus Ignaz Weiss.」2月21日 0時19分