Gozo isn't normally cased and wouldn't have a polished rim.
I have also noticed recently that the quality of Gozo leaves very much to be desired, this is too good for Gozo.
Devil's Advocation welcome, John!
But remember, this isn't a true production range - it could well be a.n. other experimental bit from it... the colours and the way they're used, are very, very Caithnessy.