70s Vintage I Magnin Blue Linen A line Dress with Cutout

This is a gorgeous 1970s vintage I Magnin dress. Made of a gorgeous bright blue linen, the dress is sleeveless with a circular cut out at the neckline, and an A line shape. I Magnin was a luxury department store and this is a luxe dress - the linen is incredibly good quality. The dress zips down the back with a talon zipper. In good condition with no major flaws to note. Has no size tags, see measurements in photos for best fit - approx a large.