Original Nelson Ball Pendant Lamp for Howard Miller MCM Atomic

I have an original Howard Miller ball pendant lamp by George Nelson. Not sure about the year this one is but it has the quintessential texture and yellowing associated with the older ones. This piece is in excellent used Vintage Condition with only one slight hole at the bottom (see pic).

I have no idea how to properly clean this piece... So you get it as I got it. There is a miniscule amount rust on the metal parts. Originally hardwired in, this piece has been swagged, and it works!

If you have any questions please feel free to message me.