🔎 UNIDENTIFIED What’s the name of this kind of button?

[Truth]

Hey can somebody give me the name of this certain button I’ve clean the backside all as good as possible and at least words are showing that’s how bad. At the top of the first picture I see two LL & SON.

 

Amazon Forum Fav 👍

Treasure of Victoria Peak - Grab it through Amazon!

[invent4hir]

Possibly 2-piece dome button.