Luisa Spagnoli short sleeve linen top, blue, medium

Luisa Spagnoli blue linen short sleeved top. Bought in Venice, Italy about 10 years ago. Tag says size 48, but it fits me and I’m a medium. 2 front pockets, brass stamped buttons. Worn once or twice. In brand new condition. Measures 50 cm pit to pit, 43 cm shoulder to shoulder, 41 cm shoulder to cuff, 47 cm at the waist, 65cm top to bottom.