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