Portland Head Light. Cape Elizabeth, Maine.
Construction began in 1787 at the directive of George Washington, and was completed on January 10, 1791. Whale oil lamps were originally used for illumination. In 1855 a fourth-order Fresnel lens was installed; that was replaced by a second-order Fresnel lens in 1864. That lens was replaced with an autobeacon in 1958.
Construction began in 1787 at the directive of George Washington, and was completed on January 10, 1791. Whale oil lamps were originally used for illumination. In 1855 a fourth-order Fresnel lens was installed; that was replaced by a second-order Fresnel lens in 1864. That lens was replaced with an autobeacon in 1958.
Portland Head Light. Cape Elizabeth, Maine.
Construction began in 1787 at the directive of George Washington, and was completed on January 10, 1791. Whale oil lamps were originally used for illumination. In 1855 a fourth-order Fresnel lens was installed; that was replaced by a second-order Fresnel lens in 1864. That lens was replaced with an autobeacon in 1958.
Construction began in 1787 at the directive of George Washington, and was completed on January 10, 1791. Whale oil lamps were originally used for illumination. In 1855 a fourth-order Fresnel lens was installed; that was replaced by a second-order Fresnel lens in 1864. That lens was replaced with an autobeacon in 1958.
