Detail
Type Kotten - Sondern is a Kotten.
Kr Schwelm - The Kreis for Sondern is Schwelm. A Kreis is a government district (similar to a U.S. county).
See Hasslinghausen B. Dortmund - A See notation means the entry is dependent on another entry. In this case, Sondern is dependent on Hasslinghausen B. Dortmund, which should be consulted for additional information.