Chinese Tangzhuang floral brocade jacket with frog closures and hidden pocket M

This has a tag size of medium with a pit to pit of 19.5”. Embroidered frog closures, a black field with gold and red flowers in traditional Oriental colors. Subtle black floral themes play under those colors. There is a hidden pocket inside, I believe this to be silk but I am not completely sure of that. The second picture is accurate in color. Side vents at the hips.