For what it is worth, I don't think that one is Mdina. It certainly has a similar form to some pieces and is thickly rendered, but the pink isn't quite the right colour and it just doesn't 'look' right to me. However, in the course of writing my book, I've come across so many weird pieces that don't look anything like Mdina, but end up having the factory signature or label. If it is, then I'd say it was 80s at the very earliest. Nevertheless, on balance, I'd say no! Sorry to make you keep on hunting.