Drawing; detail of Underground map, interchange stations symbols, by Henry C Beck, 1961 - 1964 Drawing; Inner Circle part of the Underground network, by Henry C Beck, 1961 - 1964 Map; sketch Underground map, by Henry C Beck, 1961 Artwork; unused design for map of the Underground, by Henry C Beck, 1964 Painting; self-portrait, attributed to Henry (Harry) Beck, 1950-1969 Artwork; ink drawing of diagrammatic Tube map, Harry Beck, 1932 Artwork; presentation drawing for diagrammatic Underground map, by Henry C Beck, 1931