Vintage 60s/70s Homemade? Pattern Dress? Unbranded Yellow Polyester Dress

Unlined Shoulder pads Layered short sleeves Polyester Buttoned/Zippered back Elastic waist Homemade?? Pattern Dress No size tag but measurements are as follows: Pit to pit 20” Waist (unstretched) 13” Shoulder (from one sleeve beginning to another) 14” Hip area of skirt stretched out is 20” Total length is 43” Sleeve hole length is 8”