Featured Image: ET55 Calculator, 1980; Designed by Dieter Rams (German, b. 1932) and Dietrich Lubs (German, b. 1938); Manufactured by Braun AG (Frankfurt, Germany); Molded ABS plastic, electronic components; H x W x D: 13.6 × 7.6 × 1 cm (5 3/8 in. × 3 in. × 3/8 in.); Gift of George R. Kravis II, 2015-5-4