the top hinge of one of the upvc old winnows snapped. you can see it clearly from pic 1, zoom into the top right hand Conner. pic2 also shows the part that is fixed to the farm. it is an old hinge that allows the windows to open full inward or partially by tilting inward from the top. it is very strange hinge, can someone please advise where to buy it. Also I need 6 of the breaches shown in pic 3