Vintage sewing pattern Butterick #6573 in Child's multi-sizes 2-3-4 - Probably from the 70s Cover-up and swimsuits - one piece and two piece Appears to have been cut along the size 3 lines. Loose-fitting, straight, pullover, above mid-knee, has back neckline slit with button/loop, cap sleeves, elasticized waist. Close-fitting swimsuit has cut away armholes and hip ruffle. Close-fitting, top has shoulder straps. Brief has waist ruffle. Both have elasticized upper and lower edges. Appears to be complete - multi-sized patterns are very hard to check for completeness since there are multiples of some pieces but not all.