"The late Renaissance style Holy Ark has an Art Nouveau door, above which there are Hebrew inscriptions from the Bible. Although the synagogue has been rebuilt many times, this is the original feature, carved in 1558.[2] A ner tamid )eternal light) with the Hebrew inscription "An eternal flame for the soul of ReMA, of blessed memory" is situated at the left side of the Holy Ark, while at its right a reconstructed plaque commemorates the place where Rabbi Moshe Isserles used to pray."

wikipedia