"But the plans were on display . . ." "On display? I eventually had to go down to the cellar to find them." "That's the display department." "With a torch." "Ah, well the lights had probably gone." "So had the stairs." "But look, you found the notice, didn't you?" "Yes," said Arthur, "yes I did. It was on display in the bottom of a locked filing cabinet stuck in a disused lavatory with a sign on the door saying Beware of the Leopard."
January 1, 1970
https://en.wikiquote.org/wiki/The_Hitchhiker's_Guide_to_the_Galaxy