AMF Swimaster MR12 Purge Button

This is the AMF Swimaster MR12 second stage Purge Button.
The original is made of black plastic and has a circular metal label with the brand and model.
The circular metal label is fastened to the purge button with two metal rivets.
It's composed of two pieces. The inferior part should be glued to the superior part with cyanoacrylate.