Detail
Type H. - Achterfeld is a Haus (House).
Kr Rendsburg - The Kreis for Achterfeld is Rendsburg. A Kreis is a government district (similar to a U.S. county).
See Nübbel - A See notation means the entry is dependent on another entry. In this case, Achterfeld is dependent on Nübbel, which should be consulted for additional information.