Simplicity 8298 vintage sewing pattern, dated 1978.   

Misses' Vest, Pants, Unlined Jacket and Skirt in two lengths:

Pants and five gore long or short skirt have back zipper and waistband. Princess seamed jacket with front seam interest has back vents and long set-in sleeves. The vest is lined. 

Size   12:

Bust   34 inches / 87 cm

Waist 26 1/2 inches / 67 cm

Hip     36 inches / 92 cm

Pattern is partly cut and checked complete. Envelope has shelf wear

More '70s patterns here:

https://allthepreciousthings.com/collections/1970s