Detail
Type Hrgr. - Riegesbüllkoog is a Häusergruppe (Group of Houses).
Kr Eiderstedt - The Kreis for Riegesbüllkoog is Eiderstedt. A Kreis is a government district (similar to a U.S. county).
See Witzwort - A See notation means the entry is dependent on another entry. In this case, Riegesbüllkoog is dependent on Witzwort, which should be consulted for additional information.