Vintage I.Magnin Polka dot blouse

Vintage 70’s navy blue with white polka dot blouse by I Magnin. Semi sheer blouse has a white trimmed rounded Peter Pan collar and large white mod buttons down the front. It has long sleeves with wide buttoned cuffs. I believe the blouse was originally longer and shorten sometime in the past. Good condition with normal wear. Please see photos for more details. Measurements- Bust-37” Waist-35” Length from Shoulder-19.5”