Vintage antique retro chic, mint green woven tea dress

Super awesome, unique vintage woven dress. 1960s or 1970s with sewn on belt. The skirt is pleated and the arms are unlined. There are no flaws that I can see on this. No rips, tears or stains. There are no tags inside this dress but I’m guessing it is a size 12 due to measurements. The bust is 18.5 inches across the front from armpit to armpit. The waist is 15.5 inches across the front. No stretch and the dress zips up the back to a hook and eye closure.