The "Dodo-Postcards" watermark is NOT on the actual card – it is an online watermark only.
Londinum. National Maritime Museum. Flamsteed House. Old Royal Observatory. Greenwich from south east. Crown. Card 89. Francis Place
National Maritime Museum. The Octagon Room. Flamsteed House. Old Royal Observatory. Crown
National Maritime Museum. Greenwich. c. 1675. Old Royal Observatory. Flamsteed House. The Octagon Room. Crown. Card 90
Londinum. Flamsteed House. Old Royal Observatory. Greenwich. from the South East. c. 1675. National Maritime Museum. Crown. Francis Place
National Maritime Museum. The Octagon Room in Flamsteed House. Topical Press. Pitkin Pictorial Postcard
Greenwich. The Cutty Sark. Flamsteed House. National Maritime Museum. Judges. C 1602. Multi View
Greenwich Time Ball. Installed on roof of Flamsteed House in 1833. National Maritime Museum. Larkfield Printing
Greenwich. Flamsteed House. the Oldest Part of the Royal Observatory. designed by Sir Christopher Wren. National Maritime Museum. FSC