Henrietta was the only named character not to be illustrated with a face in "The Railway Series" until book 41 of the series, "Thomas and Victoria". In this book, Henrietta is depicted with a small rectangular face where a window on the end doors would be. It was the same colour as her cabin, like the other coaches. She even didn't have a visible face in the television series until the eighteenth season. Her face in this series is larger than in the "Railway Series", and it completely replaces the door on one end, as well as the immediately adjoining window on both sides. The face is also whitish-gray as are those of the engines and much of the rolling stock, as opposed to the same brown as her paintwork as she appears in the book.