This is a rather late response regarding the windshields sold by Victoria British. I purchased a windshield from that firm during a sale and subsequently installed it on my 1960 BN7. I used that firm's rubber mounting strip that secures the windshield in the slotted frame. This can be a bit tedious, but I soon learned to tape down the exposed edges of the rubber strip as the windshield entered the channel. I also purchased the four metal angle brackets that secure the corners of the channels. I found that I had some gapping where the frame pieces met, a position dictated by the position of the holes in the angle pieces. Can't remember exactly how many pieces I had to alter, likely two. I did this by threading screw stock into the two adjoining holes on one side of the two brackets where I had gaps, swaging them tight with a small hammer. I then re-drilled and tapped the two new holes so that the corners were drawn together snugly. Might add that I found I had many small screws with the same thread as the corner bracket require in my screw accumulation. They are a common thread and appear to have been from electrical works of some unremembered kind. They even have flat heads like those included with the angle braces, though the heads are slightly smaller in diameter. Finally, the windshield I received from Victoria British was excellently packaged and received undamaged.