The "Dodo-Postcards" watermark is NOT on the actual card – it is an online watermark only.
The Virgin of the Rocks. Leonardo da Vinci. National Gallery Publications
A Detail from the Virgin of the Rocks. c. 1508. National Gallery Publications Ltd. Leonardo Da Vinci
Leonardo da Vinci. The Virgin of the Rocks. National Gallery. Her Majesty s Stationery Office by Waterlow and Sons Ltd. London
Leonardo da Vinci. The Virgin of the Rocks. National Gallery. Her Majesty s Stationery Office by Waterlow and Sons Ltd
National Gallery. The Virgin of the Rocks. Henry Stone and Son Ltd. Leonardo Da Vinci. No. 1098
National Gallery. The Virgin of the Rocks. Leonardo Da Vinci. Card No. 1098. Waterlow
National Gallery. The Virgin of the Rocks. Leonardo Da Vinci
The National Gallery. The Virgin of the Rocks. Leonardo da Vinci