The Hornby R4401 is a 1:76 scale (OO gauge) model of HRH The Duke of Edinburgh's Saloon Coach (Number 2904), part of the British Royal Train. Following the death of Queen Elizabeth II in 2022, the coach was redesignated from "HRH The Duke of Edinburgh's Saloon" to "HM The Queen Consort's Saloon" for Queen Camilla.