early 1980s Michel Klein blouse, from one of his very first collections for his own label (started in 1981) before he went on to work for Guy Laroche, before having his own brand he worked for Yves Saint Laurent, Dorothée Bis, Maud Frizon,... that blouse has an amazing construction and very flattering neckline
will best fit extra small to medium, please refer to measurements
shoulders 17
armpit to armpit 24
shoulder to bottom hem 25
sleeve length 18,5