Simplicity 8510 vintage sewing pattern, dated 1978.
Misses' Pullover Dress:
Pullover dress with front slash openings has elastic waistline casing, short raglan sleeves with turn back cuffs and buttoned tabs.
Sizes 10 - 12 - 14:
Bust 32 1/2 - 34 - 36 inches / 83 - 87 - 92 cm
Waist 25 - 26 1/2 - 28 inches / 64 - 67 - 71 cm
Hip 34 1/2 - 36 - 38 inches / 88 - 92 - 97 cm
Pattern is uncut and factory folded. Pattern envelope is in very good vintage condition.
More '70s patterns here:
https://allthepreciousthings.com/collections/1970s