Paint. United States Government master specification for paint, lithopone, interior, white and light tints, flat or eggshell finish (semipaste and readymixed), Federal Specifications Board Specification 21b, revision promulgated Nov. 23, 1927, officially promulgated by Federal Specifications Board, Feb. 3, 1922, for use of Departments and independent establishments of Government in purchase of flat interior lithopone paint, white and light tints, flat or eggshell finish (semipaste and ready-mixed).