A German-Egyptian research team working at Tell Basta, ancient Bubastis, have found a trilingual stone As the name lets assume, it concerns with the Bilinguae a stone, on which the text is fixed in two languages. As with the Rosetta Stone there are two Egyptian writings - the older Hieroglyphisch and later demotic - as well as Greek. It cotains a copy of the Kanopus decree, from the reign of the Ptolemy III in 238BC. This site is in german. There is an image of the stone, but it is a very poor quality photo. I don't read German but I'll post with more information when I find an English report.