I've been reading a book on the recent traveller on the silk road and since the book lacked images I searched for material on Google. On of the great collection of ancient oriental writing was discovered along the road and images of it have been posted on a German specialist site.
Here is a sample of a c800 AD Soghdian script.
The scripts are varied and all are beautiful.
The site is:http://www.bbaw.de/bbaw/Forschung/Forschungsprojekte/turfanforschung/de/DigitalesTurfanArchiv