The "Dodo-Postcards" watermark is NOT on the actual card – it is an online watermark only.
Greenwich Park. London. Old Royal Observatory. The Greenwich Meridian. Longitude Zero crosses the Courtyard. Department of the Environment. Crown
Greenwich Meridian. Zero Longitude. RP
Greenwich Meridian. Zero Longitude. Sending You Greetings. RP
The Greenwich. National Maritime Museum. Meridian Building. Old Royal Observatory. Meridian. Longitude Zero. Crosses the Courtyard. Her Majesty Stationery Office. W. S. Cowell
Greenwich. The Meridian Line. Jarrold. Postcard
Eye End of Airy Transit Circle. Zero of Longitude. Royal Observatory. Gr
