Vintage 1960s ? Short Sleeve Midi dress

Brand: Glass Original New York Size: No size tag, but I'd say medium. Mannequin is a size 6 and it fits comfortably, would also fit 8. Please see measurements and let me know if you need more. Notes:  Absolutely classic vintage dress. I believe this is from the 60s. Short sleeve and midi length. Overall very nice but the little loop that goes with the hook at the top of the back zipper is gone- a very easy fix. No fabric tag but I'd guess a poly cotton blend. Please see all pictures, as they are the best description. Measurements (approximate, laying flat):  pit to pit 19", front length 41", waist 14". Make sure to measure against something you own and love to ensure a proper fit.  Please ask all questions prior to purchase, as all sales are final.