I remember a long while back someone asking about a screen for a gown van that was unobtainable.I think some ambulance screens are now obsolete too.
Also a while back I read an article about a guy called Antti Wihanto who made one off windsreens.Although based in Finland his firm exports all over the world and in the article I read he'd supplied from stock a screen for a 58 cadillac.
The web site is here http://www.sicurvetro.com/ There is a link to his e-mail address.I remember the article said he spoke English.




