Antique question, what would the value of this jug be?

http://photobucket.com/Adrian484. that's the link to a photobucket page with pictures of the jug and a cup from the set. sorry the picture quality is so ****, the jug is my mums handed down from her grandparents or great grandparents im not sure. it has six cups with it, gold and other colourd birds. some wierd flower thing with white small pettals. a gold rim and the galess has a sort of blue highlight through the bottom and handle when you hold it up to light sorta. it has no trademark anywere. its gl but its a very light gl. i thought it was plastic at first, it sounds quite thin but its not. please i only want real answers not an answer with a link to an antique site. (thanks in advance)