Looked everywhere - what are these stamped items I have?

Hey everyone! I came across this the other day while visiting my parents town. It looks interesting, and was cheap enough, but I have been able to find hardly anything about it. Any help would be GREATLY appreciated!!

It looks like a serving tray and has 5 glass or crystal inserts. The artwork around the edge has the same finish as the inside bottom of the tray, while the outer edge has what looks like thick black tarnish. I have more pictures, but will have to load them in another post.
meriden brittannia company tray MBC EP.jpg
meriden brittannia company tray crown bundle star.jpg
meriden brittannia company tray 00106.jpg