Harry Potter Platform 9 3/4 Bookmark Harry Potter Hogwarts Railway Bookmark with Charm This bookmark has been created using the style guide from Warner Bros. A cartoon variation of the Platform 9 3/4 sign The Hogwarts Railway was the preferred transportation to Hogwarts for its students Silver Plated Bookmark with attached Hogwarts Railway charm Approx. 15mm This bookmark comes on the Harry Potter branded card packaging and shows the Warner Bros logo on the reverse. This bookmark is one of many new Harry Potter Bookmarks we offer as a part of a collection. The Carat Shop are the licensed manufacturers of Harry Potter Jewellery on behalf of Warner Bros.