Authentic vintage sewing patterns: This is a fabulous original dress making pattern, not a copy. Because the sewing patterns are vintage and pre owned, we check each vintage sewing pattern for completeness, for the pattern pieces and the instruction sheet. Please keep in mind these are vintage patterns that may show their age not perfect in appearance but still very usable. In many cases the vintage patterns have never been used and are uncut and factory folded.
Pattern by Butterick
Pattern Number # 4863
Copyright 1970s
The pattern is: Complete FACTORY FOLDED
Size: 22.5- 24.5 Bust:45-47 Hip: 48-50.5
Butterick 4863; ca. 1977; Half Size Swimsuit & Caftan. Close-fitting, slightly flared swimsuit has scoop neckline, cut away armholes, princess seams, inside bra, self tie belt with knotted ends and topstitch trim. Lined bias briefs have elasticized edges. Loose-fitting caftan in evening length, has jewel neckline, front slit with purchased foldover braid finish and frog closing, shaped hemline and side slits.

Love the design, but not the size? These sites will help you with resizing :
VINTAGE 70s Skirted Swimsuit and Pullover Caftan Pattern BUTTERICK 4863 Evening Length MAXI Lounging Beach Robe Bust 45-47 Vintage Beachwear Sewing Pattern FACTORY FOLDED