pics 1, 2 and 4 are Mdina. I don't know what 3 is!
Pic 2 is a perfume bottle minus its long-drop style stopper, probably dates to the '80s;
the Roman lamp style piece is undatable, (pic1) really, as they have been made from pretty early on and I think they're still made, the horse head paperweights have also been made for a very, very long time (designed by Vicente Boffo). I'm afraid none of these Mdina bits are very special. Car boot.