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