Vintage 1970's McCall's 4207 Misses' and Junior Bride and Bridesmaid Dress Sewing Pattern Size 12

McCall's 4207; ©1974; Misses' and Junior 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 12 Bust 34
Uncut