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Signal pole with acetylene lamps that could be raised to heights of40 to 60 feet by means of pulleys

Description

Signal pole with acetylene lamps that could be raised to heights of40 to 60 feet by means of pulleys.

Credit

Collection of NOAA/NOS/National Geodetic Survey William H. Burger Album

Display Date

1906

Collection

Historic Coast & Geodetic Survey

Keywords

Coast and Geodetic Survey