Time to repair this old Lamp, replacing the Pull Chain Socket.
On/Off Pull Chain Socket https://amzn.to/2YOaFGy
Feit Electric “Original” Vintage Exposed Filament Amber Glass Soft White (2100K) Dimmable ST19 LED Light Bulb (ST19/VG/LED)
The Home depot version has straight filaments. 60-Watt Equivalent ST19 Dimmable Straight Filament Amber Glass Vintage Edison LED Light Bulb, Warm White
Mid Sized Bulb... 60-Watt Equivalent ST19 Dimmable Straight Filament Amber Glass Vintage Edison LED Light Bulb, Warm White
