Unsigned but I believe this to be made by Mdina in the mid 1970s. Gorgeous glass decanter with stopper. In very good condition, just two very small defects on bottom edge (shown with arrows) and not really noticeable but just declaring for full transparency.

Brand: Mdina Glass
Origin: Maltese
Type: Bottle
Era: Late 20th Century (1970-1999)
Material: Glass
Production Style: Art Glass
Country/Region of Manufacture: Malta
Colour: Blue
Product Line: Sea and Sand