Shara black blouse size 12

Shara black blouse size 12 armpit to armpit measurement is approximately 21 in from shoulder to hem it's 26 and 1/2 in shoulders straight across laying flat 18 in the sleeve length is approximately 22 and 1/2 in one button cuff closure the buttons on the shirt are hidden there is one decorative button and Brass tone please see pictures thank you