Ian, First tee, Martin, Ondra, Michael, LM, Ernie and rick, thank you kindly for all the wonderful comments.
Ondra, to simulate the tiny screws I first marked out at 2mm intervals then drilled holes using a 0.4mm tungsten drill bit, I then glue short lengths of 0.25mm brass wire into each hole using super glue. Once the glue is dry I snip off the extra length by using a pair of finger nail clippers, these do not cut the wire flush with the surface but leaves just a fraction protruding, gives a very good effect.
Des.