........ and it was 'orrible! :wsh:
(I don't often say that about anything by Michael Harris - I normally love anything he made/)
Shugdens, it's not an "end-of-day" piece - Michael used to make these as demonstrations/exhibitions for visitors to the studio who came to watch glassmaking "in action".
You say it's "fully signed" - no wonder folk are asking you questions :thud: I'd want to know if you mean it's signed by Michael Harris, or just marked (not signed) Mdina, and does it have a date?
Also, it's hard to tell from your image what colours are in it. Are there a cobalt blue streaks in the turquoise?
That would be an important feature.
(not criticising at all, just trying to help

)