I bought them for a small trip through Europe 10 years ago in my 24V military Series III, they were fitted for only a couple of weeks and are in great condition. Stored in my loft since. Black in colour, having just examined them, they are velcro attached windows, not the zip version. I think...

It might help someone else asking the same question in the future https://www.johncraddockltd.co.uk/ext013-1-no-longer-available-zip-up-door-tops-pair.html Zip up Door Tops Part No. EXT013-1

I've just found some roll up front windows in my loft for my old Series iii, I don't have a need for them any more. A couple of web searches later I can't find a part number or proper name for them. Help appreciated.