I have a small stopperless Gozo PB, with paper label, I suspect the mark is under that, because a bit sticks out, and a fully flat polished base that looks a little bit like the vase shown.
But the strapping is far more random. The base colour is a royal blue enamel over clear glass.
This vase shown looks more like Phoenician, to me. I'm never really sure with Gozo.