While en route to Wales, the Prince William was captured in a photo holding a binder adorned with his monogram.

Prince William
Prince William, Prince of Wales visits the Hideaway Youth Project, lead partner of the Manchester Peace Together Alliance during his visit to Moss Side on November 16, 2023 in Manchester, England. Getty Images/Anthony Devlin

Despite Prince William's change in royal status following his father's ascension to the throne, his monogram has remained unaltered.

William, 41, embarked on a trip to Wales on Tuesday to explore advancements in seaweed innovation, traveling via train to Cardiff. A social media post depicted William gazing out the window during his journey, with his phone and a red binder featuring his royal monogram — a "W" topped by a coronet-visible on the table before him.

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Prince William and King Charles
Prince William, Prince of Wales, known as the Duke of Rothesay while in Scotland and King Charles III attend the National Service of Thanksgiving and Dedication for King Charles III and Queen Camilla, and the presentation of the Honours of Scotland, at St Giles' Cathedral on July 5, 2023 in Edinburgh, Scotland. Jane Barlow - Pool/Getty Images

Prince William's royal cypher has not been updated to reflect his new position as heir apparent. Gert's Royals highlights that William's emblem, commonly used on stationery and official documents, still showcases the coronet indicative of a child of the Prince of Wales.

Prior to King Charles appointing Prince William and Kate Middleton as the new Prince and Princess of Wales one day after Queen Elizabeth's death in September 2022, the title of Prince of Wales was held by the monarch as heir. Charles, 75, in fact, held the distinction of being the longest-serving heir apparent in British history due to his mother's remarkable 70-year reign.

BRITAIN-ROYALS-CORONATION
A Drum Major's State coat adorned with the new CR III cypher and to be worn during the Coronation of Britain's King Charles III and his wife Britain's Camilla, Queen Consort is pictured at Kashket & Partners atelier, in north London, on May 5, 2023. (Photo by Justin TALLIS / AFP) (Photo by JUSTIN TALLIS/AFP via Getty Images)

Despite Prince William's monogram remaining unchanged, King Charles unveiled his new royal cypher shortly after ascending the throne. The monogram features a crown above his initial "C," intertwined with an "R" for rex (Latin for king), traditionally used for monarchs since the 12th century, with "III" enclosed within the "R."

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Prince William, King Charles, Royal family