I'm not sure why everyone is using the raw metal Coughtrie lights.
It looks like the Galaxies Edge edge Falcon is being used for reference.
All the movie hall lights are the standard Coughtrie grey paint (classic trilogy, sequels, and Solo).
Well the raw aluminium does look pretty sexy. I don’t know if the ANH ones were pale grey though. They look to me like they were painted a dark grey or possibly even black in some of them.
I also wonder how many were real Coughtrie lamp bases. It was really common for British set builders in those days to mould repeating items from plaster. I suspect it would’ve been cheaper for them to make the Falcon set wall sconces from plaster replicas.
There were a lot of Coughtrie bases seen in ANH all over the place, and even old metal ones would have cost more than plaster I suspect!