 Photographs of her sister ship "Olympic" were passed off as being "Titanic".A common mistake made in fake photographs was that of showing the ship's fourth funnel billowing smoke; in fact, the funnel was a dummy, added for purely aesthetic purposes.Photographs of the Cunard Line vessels "Mauretania" and "Lusitania" were retouched and passed off as the "Titanic", or even as the "Carpathia", the vessel which rescued the "Titanic" survivors.