LT RHS Chelsea Flower ShowOriginal London Underground poster RHS Chelsea Flower Show featuring a floral depiction of the tube map with colourful flowers as the route lines, a luggage label tag marking the Chelsea Flower Show location, issued in celebration of 100 years of the Royal Horticultural Society's annual show held at the Royal Hospital Chelsea and the 150th anniversary of London Underground in 2013, the title and information text with the Union Jack flag logo and