Liberty Bell, Bell replica in downtown Portland, United States.

The Liberty Bell in Portland is a one-ton replica of Philadelphia's bell, cast in Best Genuine Bell Metal, a copper alloy with at least sixteen percent copper. It measures about 66 by 64 by 66 inches and hangs from a horizontal beam held by two V-shaped supports. Its base combines brick, steel and mahogany, and the west side reads Pass and Stow / Philada / MDCCLIII.

Portland's first replica was bought in 1962 for $8,000, cast at the McShane Bell Foundry in Baltimore, and installed in City Hall's rotunda on May 5, 1964. A dynamite bomb destroyed it on November 21, 1970, damaging the east portico; the crime remains unsolved. A second replica, funded by $8,000 in private donations, was placed outside City Hall around 1972 and dedicated on November 6, 1975.

The replica stands outside City Hall's east portico at Southwest Fourth and Madison, across from Terry Schrunk Plaza, and the Oregon Department of Veterans' Affairs lists it as a state veterans memorial. It has appeared in published walking tours of Portland, and the Smithsonian's Save Outdoor Sculpture! program calls it allegorical, symbolizing liberty.

The replica stands outdoors on the east side of City Hall, near Southwest Fourth Avenue and Madison Street, across from Terry Schrunk Plaza. It is attached to a horizontal beam held by two V-shaped supports above a brick, steel and mahogany base, so it can be viewed at any time from the sidewalk.

The 1970 blast that destroyed the first replica remains unsolved: no one claimed responsibility or was prosecuted. The Oregonian noted in 1993 that speculation blamed left-wing or right-wing terrorists depending on the accuser's politics, while others called it a monumental prank gone wrong.