Panel posters were produced for display in Underground car interiors, as well as on the inside and outside of buses and trams. Because they did not have to fit a standard frame or wall space, they are smaller than other poster formats and vary slightly in size.
Print, Framed print, Image licence
Double royal has been the standard poster size used by the Underground since 1908. This 40 x 25 inch format has been used almost exclusively by railway companies.
London Transport MuseumCovent Garden PiazzaLondonWC2E 7BB (map)
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