Butterick 7641; ca. 1956; Misses' Blouse in Three Variations. Blouses A, B and C feature a tabbed rounded yoke, button front with back pleat and front and back darts. View A has a collar and long sleeves with buttoned cuffs. View B has a collar and short sleeves. View C is collarless and sleeveless.
Featured in Butterick Pattern Book Spring 1956