Butterick 7771; 1950s; Casual Overblouse. The casual top for all your sport skirts and pants. An overblouse with two-button horizontal closing, side slits. (A) Long sleeves. (B) Short sleeves. (C) Sleeveless view with pockets. See Butterick 7673 for man's version. Featured in Butterick Pattern Book Summer 1956 alternate envelope colorway