Speaking of the 1950s (and up into the 60s)- remember those living room pole lamps with multiple heads growing off them? Some of them were even spring-loaded to go between floor and ceiling without having to have a huge base. Common use was in the 'Dagwood and Blondie' corner of the living room, with the 2 big chairs, so each person could have light on what they were reading. 3rd head was usually bounced off ceiling, or just ignored. I think my grandparents wore out about three of them. He was a retired EE, so he would switch parts around to keep the important parts working.
-- aem sends...