2-Ton Cannon Is Fodder for Ongoing Rivalry Between Caltech and MIT - Los Angeles Times

Talk to their lawyers, Dewie, Cheatem, and Howe … The LAT notices that some fine students at MIT visited rival Caltech and quietly pilfered Caltech's famed 130-year-old Fleming Cannon, fired annually during commencement day and now sitting peacefully in Cambridge. The MIT students simply presented Caltech guards with work orders from their new business: "Howe & Ser Moving Company."

Thanks to Slate for the above link.