Vintage periwinkle blue button up shirt

3/4 length cuffed sleeves, pearly buttons, breast pocket. Loveliest collared shirt, can be worn open as a summer little jacket or closed. Has a bit of a Bill Cunningham vibe. Dry cleaned! Honestly she’s too perfect and I’ve always been too afraid to crease her, but maybe you’re less crazy than I am. I’d guess a cotton linen blend. Extra button attached to inner side seam. Brand is Seiden Sticker, size 42. Length approximately 24.5”