Trust me, the original aero screens as provided by Triumph for the TR2 are very different than Brooklands accessory screens...and actually to quote from "The Original Triumph TR2/3/3A"
"Aero Screens: The 'works' type bolted directly to pre-drilled holes in the scuttle-- these holes were deleted from TS32833. Part number 700896. They had a larger glass area than the type of aeroscreen commonly supplied today."
When you see the pix, you'll understand the description. It is common to use Brooklands or some of the other vintage aftermarket (Amco?) screens, but these are different than Triumph's original equipment.