We have a really old painting signed ferdinand bol dated 1642 and the family story behind it is that my grandfather sold carpeting to a man in the late 1960's after the job he gave my grandfather a painting with a butt ugly frame. after sitting in the closet for years he decided to change the frame and behind the original painting was a canvas on wood painting about 12x12 inches signed f bol or ferdinand bol 1642. its a man smoking a pipe and thats all we know about it, so it has been sitting in various garages and closets for 40 years despite being over 300 years old. does anybody know anything about this painting??? southern california is the region the painting has been located since the late 1960's