This jacket is simply amazing. A summer sportscoat from the 1920s or 30s. Lovely beltback with pleats and shoulder yoke. It’s made of reasonably heavy white cotton gabardine, and goes through the washing machine, making it very low maintenance summer wear. It has great patch hip pockets and a slightly angled welt breast pocket. It was made by Lorraine Haspel, who are more famous for linen stuff, and produced the “Mark Twain” brand back in the day. At the bottom are a couple of ads I found in newspapers from the middle 30s. Very gatsby!