A covered placket coat by japanese brand grass men's (circa 1980s). Made from dark brown, vaguely sharkskin-y but not wholly / truly sharksin-y blend of wool and silk, with raglan shoulder, covered placket (implicit or rather explicit in description "covered placket coat), point collar, welt pockets at waist, and adjustable tabs at cuff. Coat can be cinched at waist via longish, self-fabric belt. Cut is generous / oversized.

Size M (mens), should fit unisex range of sizes depending on desired fit
Check measurements to confirm fit
All measurements taken flat

Shoulder width (approx, raglan): 43.5 cm
Width (at underarms): 63 cm
Length (neck to hem): 119 cm
Sleeve length (approx, raglan): 62.5 cm
Hem width: 80 cm

85% wool 15% silk
Circa 1980s