Copyright-free (著作権フリー) is a conventional expression extensively used in Japan that the author say their works can be used freely regardless of copyright. It is distinguished from public domain.
... Clinton (162)
Charles C. Pinckney[?]
14
Federalist
Rufus King (14)
Other elections: 1792, 1796, 1800, 1804, 1808, 1812, 1816
Source: U.S. Office of the Federal ...