The "Dodo-Postcards" watermark is NOT on the actual card – it is an online watermark only.
The National Gallery. Davidson Bros. RP. 1909
London. The National Gallery. Davidson Brothers. Series 5035. 6. RP
London. The National Gallery. Danseuses. Hilaire Germain Edgar Degas. Masterpiece. The Art Auction Game
National Gallery. David and Jonathan. Cima. Official Series. No. 281. Rembrandt
Constable. John. The Haywain. Card No. 1063. The National Gallery
Flowers in a Terracotta Vase. Huijsum. Jan Van. The National Gallery. Card No. 1018
The Haywain. The National Gallery. Card No. 1063. Constable. John. 1986