Silverleaf Leather Coat

I am thinking this is a vintage piece. ( I am not certain of it) Pre-Owned Silver leaf black leather coat. The coat has side pockets and includes a belt. This coat is pre-owned in pre- owned condition. The picture showing the top of the shoulder is showing that the button is loose and should be tightened up a bit. Otherwise in good condition. It is a size medium. Measurments are approximately 21 inches from arm pit to arm pit and 52 inches long.Please see photo. Questions are welcomed.