I would guess that the age and use of aluminum that these light are from the 1940s - 1950s. They have no manufacture's marks however, they are all numbered the same which leads to matching the same manufacturer!
HAREWARE: They are all made of aluminum and have zero issues with being complete, solid and in great condition. The have some remaining overpaint marks and it appears that they had a clear coat on them way back.... most of paint and clear coat are now pretty much gone. A good clean and buff and these will look great again!
ELECTRICAL: It has most of it (Cloth Wire and Bulb Sockets) however, should all be replaced due to age and condition.