This photograph was taken on April 12, 1912, by the captain of the SS 'Etonian' (ship owned by the Cambrian Steam Navigation Co. Ltd. and served the Boston-Liverpool and Boston-Cardiff voyages). The coordinates indicated in the photo caption are 41°50' longitude and 49°50' latitude.
According to many researchers, it was this iceberg that the infamous Titanic crashed into two days later, on April 14, 1912.
