DEO MERCVRIO
TEMPLVM SABINA EFOSSVM ET
C AEGIDIO REAEDIFICATVM
HENDRICE ET TEXTORE
PRAEFECTIS KAL AVG MCMLXXXIX
means: dedicated to the god Mercury. The temple was dug up by Sabina (= Dr. Sabine Faust) and rebuilt by Carolus Aegidius (= Dr. Karl-Josef Gilles) on August 1, 1989, when Hendricks and Weber were mayors.