Issue date: February 14, 2014, made in the USA. Each of these four stamps depicts a close-up view of one plant—(clockwise from upper left) amaryllis, cyclamen, Christmas cactus, or paper white—with detailed and colorful renderings of its blossom and foliage. These winter-blooming flowers are popular potted plants, especially during the holidays when people enjoy them as gifts or as festive decorations. Just as these flowers brighten our dark winter days, these stamps will add a decorative and cheerful note to all your correspondence. Art director Ethel Kessler designed the winter flowers stamps, which feature art by William low. The winter flowers stamps are being issued as forever stamps in books of 20. Forever stamps are always equal in value to the current first-class mail one-ounce rate.