My grandfather was an electrician. He just found and gave me this old disconnect made by square D .
The enclosure is made of porcelain. Has patent info on back for patent Oct 27 1914, 1916 and 1919 Says "making electricity safe for everyone" on front.
This is definetly before my day, anyone know anything about this era equipment?
![[Linked Image from electrical-photos.com]](https://www.electrical-photos.com/data/506/medium/Shellys_Chucks_boat_sq_d_switch_014.JPG)
![[Linked Image from electrical-photos.com]](https://www.electrical-photos.com/data/506/medium/Shellys_Chucks_boat_sq_d_switch_015.JPG)
![[Linked Image from electrical-photos.com]](https://www.electrical-photos.com/data/506/medium/Shellys_Chucks_boat_sq_d_switch_016.JPG)
![[Linked Image from electrical-photos.com]](https://www.electrical-photos.com/data/506/medium/Shellys_Chucks_boat_sq_d_switch_017.JPG)
