Saints Peter and Paul was a 16th century sketch by the Italian artist Cherubino Alberti.
In 2399, this sketch adorned one of the walls in Jean-Luc Picard's study at Château Picard. (PIC: "Remembrance", "Maps and Legends", "The End is the Beginning", "Absolute Candor", "Stardust City Rag", "Broken Pieces")
The identification of this sketch was made by Jörg Hillebrand and Bernd Schneider for Ex Astris Scientia. [1]