The "Dodo-Postcards" watermark is NOT on the actual card – it is an online watermark only.
Boy with Apple Greuze. Tuck. National Gallery Postcard No. 1225. 1901
Scarborough. In The National Gallery. Tuck. Art. Series. 2516. 1. J. M. W. Turner
National gallery. A Child with an Apple. Henry Stone and Son Ltd. Card No. 1051. Greuze
Edinburgh. Castle and National Gallery. Tuck
Edinburgh. Castle and National Gallery. Tuck. Plate marked Sepia. Postcard No. 2459
London. Trafalgar Square with National Gallery. Nelson Column and St. Martin in the Fields. Photographic Greetings Card Co. Ltd. Natural Colour Series
London. The National Gallery. Tuck. 1909
Portrait of a Man. Tuck. National Gallery. No. 1247. Frans Hals. 1903