Part of the "Stolpersteine" (stumbling blocks) project, set up by the German artist Gunter Demnig, who commemorates the victims of the Nazis. The signs are usually placed in front of the houses of the victims.
Translation of the text on the cover: HERE LIVED SELMA ROER NÉE MOSER BORN 1897 DEPORTED 1941 ŁODZ/LITZMANNSTADT MURDERED
HERE LIVED HILDEGARD ROER BORN 1920 DEPORTED 1941 ŁODZ/LITZMANNSTADT MURDERED 14.7.1944 CHELMNO KULMHOF
HERE LIVED WALTER ERICH ROER BORN 1924 DEPORTED 1941 ŁODZ/LITZMANNSTADT AUSCHWITZ 1945 BUCHENWALD MURDERED