In the 1970s the "Jesus Fish" began to be used as a symbol of contemporary Christianity. In 1973 the symbol and message were taken to the Aquarius Rock Festival in Nimbin, Australia. Today, it can be seen as a decal or emblem on the rear of automobiles or as jewelry as an indication that the owner is Christian. Versions of this include an Ichthys with "Jesus" or "ΙΧΘΥΣ" in the center, or simply the Ichthys outline by itself. According to Christopher Garbowski in his book Religious Life in Poland: History, Diversity and Modern Issues, while many Christians hang a cross necklace or rosary inside their vehicles, "the fish sticker on the car is a more conscious symbol of a witnessing Christian—significantly, unlike the former, it is on the outside of the car for everyone to see." The Jesus Fish, or Ichthys, is a symbol of Christianity that dates back nearly two full millennia and is still used today to express faith in Jesus Christ and His salvific work for mankind. Westmon Works celebrates the Icthus with this pack of 10 set of medals and cards.