This is a replica of the benchmark plaque from the United States Coast and Geodetic Survey (now the National Geodetic Survey) of Sky Top, first recorded in 1942. Plated nickel magnet or key chain. Both 1 1/4" round.
This is a replica of the benchmark plaque from the United States Coast and Geodetic Survey (now the National Geodetic Survey) of Sky Top, first recorded in 1942. Plated nickel magnet or key chain. Both 1 1/4" round.