What an amazing moment that must have been, when they realized what the stone meant. Mystery solved!

Transcript:

Mr Bugg stands in front of a huge block of stone, his arms raised in the thrill of discovery, his mouth a round O of shock. On the stone tablet, Mrs Bugg poses in approved Buggyptian fashion, arms in blocky Ss. She is surrounded by carved symbols of all sorts, including one I just noticed.

The text reads: “Bugly 15, 1799: The Buggseta Stone is found in Buggypt, allowing the translation of Buggryglifics.”