What discourse of buddha is believed to be the earliest printed image with an authenticated date?

The earliest printed image of the Buddha with an authenticated date is believed to be from the "Diamond Sutra," which was printed in 868 CE. This woodblock print, discovered in a cave in Dunhuang, China, features a detailed depiction of the Buddha and is accompanied by text from the sutra. The Diamond Sutra is significant not only for its artistic representation but also as an important Buddhist scripture emphasizing the nature of perception and enlightenment.