Racing Windscreen

[pls01]

Thought I might check the Cobra/428 forum.
   I have an Ace (BEX375) and looking for a racing windsceen.  It may have been used on Cobras also.  My Ace had one when raced in the early 60's.  The holes and mounting bracket are still in the cowl, but I can't find the screen.  It was taken off when the windshield was reinstalled and car was put back to road use.
   
   There are three studs in the mounting bracket.  They are not equally spaced.  The first to the middle is about 8.0" and the middle to the third is 7.5".
   
   Any ideas where to get the screen?  Any people making replicas of late 50's speed parts?
   Thanks
   Peter Stanwicks