On a cold, overcast Tuesday morning in February 1981, something caught the eye of a museum technician as he walked through the “We the People” exhibit on the second floor of the Smithsonian National Museum of American History: The silver pen of President McKinley’s Secretary of State John Hay was missing. The 7 ¼-inch Parker Jointless pen had been used to sign the 1898 Treaty of Paris, ending the Spanish-American War.
But now, to the technician’s horror, its case was empty -- and there were more alarming discoveries to come.