Butterick 5812; ca. 1970; Misses' Bra, Full Slip, Petticoat & Briefs: Bra lined to edge. Full slip in mini or above knee length has side zipper and lace trim. Petticoat in mini or above knee length has elasticized waistline and lace trim. Bias bikini briefs are elasticized at waistline and legs. 7 pattern pieces.