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