Columbine was designed by Walter Moorcroft in 1947 and redesigned by him in the early 1980s. Please see p. 144 of Atterbury (1993) for examples of the early and later designs. This bowl features the earlier version of his Columbine.
3.5" (8.89 cm) diameter
1.375" (3.4925 cm) high
1.5" (3.81 cm) footed base diameter