Anglia Rubbers

I need to buy the rubbers that the rear opening window tab s slide into. i was hoping to reuse the ones on teh car, but on completely disintegrated when I was putting the window back in, so that idea went downhill...

I have heard that Gemini vans had similar rubbers. Any help as to what or where to buy these would be appreciated.

Pics of what I mean

http://i300.photobucket.com/albums/nn22/rsgerry/anglia/P7180009.jpg

CheeRS