Detail
Type Torh. - Berg is a Torh.
Kr Rothenburg OLaus. - The Kreis for Berg is Rothenburg OLaus. A Kreis is a government district (similar to a U.S. county).
See Muskau 2) - A See notation means the entry is dependent on another entry. In this case, Berg is dependent on Muskau 2), which should be consulted for additional information.