McCall's 5445 vintage sewing pattern, dated 1977.

Misses' Set Of Blouses:

Buttoned blouse A made from scarves by the yard, or B with contrast scarf have notched collar, sleeves pleated into buttoned cuffs. Yoked blouse C has forward and extended shoulder line, front and back inside tucks, buttoned front bands, buttoned standing collar and tie belt, sleeves gathered into buttoned cuffs.

Size 16:

Bust 38 inches / 97 cm

Waist 30 inches / 76 cm

Hip 40 inches / 102 cm

Pattern is cut and checked complete. Envelope has small holes and a store stamp on the front.

More '70s patterns here:

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