McCall's 4207 vintage sewing pattern, dated 1974. 

Misses'  Bride and Bridesmaid Dress.

Dress has bodice tucks, a high darted under bust waist, and a high banded collar that is open in the B, C versions and closed with buttons on A. The full sleeves can be above elbow or long length ending in deep cuffs closed with buttons.

Size    10:

Bust   32.5 inches / 83 cm

Waist 25 inches / 64 cm

Hip    34.5 inches / 88 cm

Pattern is partly cut and checked complete. Envelope is in good vintage condition, with a store stamp on the front.

More '70s patterns here:

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