70s Maxi Dress with Square Neckline and Puff Sleeves

1970's Vintage Maxi Dress by Windsmoor.
Slightly high waisted with square neckline and puff sleeves
Floral pattern on a black background
White trim on the neckline and bust
Concealed zip at the back
 
Size SMALL. 
Label states UK size 12 but I'd guess its closer to a UK 10, US 6 or EUR 36 in modern day sizing.  Please see the measurements below and compare with an item that you already own: 
 
Bust 36"
Waist 27"
Hips 42" 
Length 54 1/2"
Shoulder seam to cuff 25"
Shoulder seam to shoulder seam 15"