Vintage Straight Line 70's Yellow Dress Size 12

Beautiful Vintage Dress Made by Straight Line I believe it is from the 70's Yellow White and Black The button on the front opens up Waist has Elastic Size 12 ( Vintage so fits a little smaller. I wear a Medium and it fits me) Measurements Length 44" Bust 18.5" Waist 12" without stretching it Small spot on the white. Shown in photo. Possibly could come out I did not want to wash it. A11