which were imported and made from non-native wood. The tablets are 0.25 - 3 mm thick with a typical size being 20 x 8 cm (the size of a modern postcard). They were scored down the middle and folded to form diptychs with ink writing on the inner faces, the ink being carbon, gum arabic and water. Nearly 500 tablets were excavated in the 1970s and 1980s.

First discovered in March 1973, the tablets were initially thought to be wood shavings until one of the excavators found