OHS4140-02 system

The OHS4140-02 system was introduced in the 2009 reference book The Essential Atlas, authored by Daniel Wallace and Jason Fry, which placed the system in grid square T-7.

Behind the scenes

The OHS4140-02 system was introduced in the 2009 reference book The Essential Atlas, authored by Daniel Wallace and Jason Fry, which placed the system in grid square T-7.

Sources

  • The Essential Atlas

Appearances