This might be of interest to people here.
The International Dunhuang Protect is scanning and cataloguing all the texts and artefacts from the Dunhuang caves. They found camel loads of Buddhist texts from numerous languages (including Tangut texts on Chan/Zen!).
For example, take a look at this high resolution scan of a Guanyin portrait:
http://idp.bl.uk/database/oo_scroll_h.a ... 0;index=61
Main site:
http://idp.bl.uk/

