Classic white button front sleeveless collar shirt

Classic white button front sleeveless collar shirt. Lovely breezy style. Button front, fitted, side slit detail. Maker, content, & size tags removed, but this feels & looks like linen or cotton or a blend of the two. Dress form is about a 6/8. Measures (flat, unstretched, approximate): armpit to armpit: 17.5in, waist: 15.5in, hip: 17.5in, shoulder to hem: 22in