Inside the backyard, on the eastern elevation of the tenement house at 1 Wałowa Street, there is a Yiddish advertising board of a hotel and a kosher restaurant of Abram Mentlik. The sign was painted directly on the wall. The sign advertising the restaurant and hotel was created in the interwar period. In English it means “Merchant Hotel/A. Mentlik/ (graphical presentation of a palm with a finger directed upward, i.e. the topographic sign of “maniculum”) Floor 1”. Below the Polish phrase, there is the same content in Yiddish written with Hebrew alphabet letters. It is well-known that Abram Mentlik operated his merchant hotel and restaurant already in 1932. Jews lived in that area already in the 18th century and the ghetto located there covered the site of the Jewish district.