Black Square Cast Metal Flush Mount Ceiling Light shops Fixture, 1950s Mid Century Modern numbered "B196"

This listing is for a Black Square Cast Metal Flush Mount Ceiling Light Fixture, 1950s Mid Century Modern numbered "B196". This measures 3 1/2 inches tall, is 9 3/4 inches Square at the ceiling mount and is 5 inches square across the face. This may need cleaning but is in great vintage condition. No maker marks or stickers that I can find, only numbered inside at the edge. This is a 2 bulb light fixture. The mounting bar piece is included. See pics. shops