[yarddog]

Did you have the real mask or a reproduction?

You are right that the guy who wore it was likely a relative of Agamemnon.

[AnAmericanMother]

As I said in the original post, it's a repro (although it's an "official" one with the leaden seals from the museum in Athens attached to it!)

The unidentified fellow in shaft grave V was about 300 years too early to be Agamemnon, but there's no sign of the fortress changing hands, so they probably were related.