This is a stunning rare what looks to be an early 17th (1600"s) century stained glass panel. It depics an old aging nobleman sitting in a chair who appears to be approaching the end of his life as skeletal Death figure pears behind him and holding out over his head the hourglass symbolizing that time slips away. Another nobleman stands with a cane in hand watching. Many artist in the 16th century(1500's) used this metaphor in their etchings. It may be possible that this is in fact from that period.
9.75" Tall p>