Detail
Type Hof - In der Mark is a Hof (Farm, Manor, Courtyard).
Kr Altena - The Kreis for In der Mark is Altena. A Kreis is a government district (similar to a U.S. county).
See Halver - A See notation means the entry is dependent on another entry. In this case, In der Mark is dependent on Halver, which should be consulted for additional information.