Detail
Type Ml. - Untermühle is a Mühle (Mill).
Kr Gelnhausen - The Kreis for Untermühle is Gelnhausen. A Kreis is a government district (similar to a U.S. county).
See Wächtersbach - A See notation means the entry is dependent on another entry. In this case, Untermühle is dependent on Wächtersbach, which should be consulted for additional information.