McCall's 2365 vintage sewing pattern, dated 1970. 

Co ordinates in Half Sizes:

Blouse has center back zipper. Blouse with long sleeves, gathered into buttoned cuffs, has self fabric tie belt or purchased tie. Skirt has front inverted pleats, with underlays, stitched in place part way. Skirt and pants have left side zippers.

Size 16 1/2:

Bust 99 cm ( 39 inches)

Waist 81 cm ( 32 inches)

Hip 104 cm ( 41 inches).

Pattern is partly cut and checked complete. Envelope has a store stamp, some staining, flap has been removed.

More '70s patterns here:

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