Detail
Type Wlr. - Rubacker is a Weiler (Farm or Small Village).
A Überlingen - The Amtsbezirk for Rubacker is Überlingen. The Amtsbezirk is the District Office.
See Homberg 1) - A See notation means the entry is dependent on another entry. In this case, Rubacker is dependent on Homberg 1), which should be consulted for additional information.