Detail
Type Hof - Birkhof is a Hof (Farm, Manor, Courtyard).
OA Gammertingen - The Oberamt for Birkhof is Gammertingen. The Oberamt is a government district.
See Neufra Hohenzollern - A See notation means the entry is dependent on another entry. In this case, Birkhof is dependent on Neufra Hohenzollern, which should be consulted for additional information.