M 47 HBT. The condition isn't too bad, but there's a repair on the left sleeve. Also, there are some oil stains and paint stains around the second button, but otherwise, the condition is generally good. The size markings and fiscal year stencil have all faded and are no longer visible. I estimate the size to be equivalent to M. The buttons are urea buttons, not 13-star buttons. It's still in a condition where you can definitely wear it. Please judge from the photos. Measurements: Width 54cm, Shoulder Width 48cm, Sleeve Length 62cm, Length 66cm