ajusco 1930's machinist lamp

I love old machinist lamps around here. I occasionally get my hands on some that I will 'preserve'. I don't want to restore them but rather keep their wabi-sabi character and just make them work safely.
Letting this one go:
https://www.etsy.com/listing/103274557/ajusco-machinist-or-task-lamp-circa?ref=v1_other_2