The "Dodo-Postcards" watermark is NOT on the actual card – it is an online watermark only.
Fritillaries. Tortoiseshells and their Relatives. British Museum. Card DPE 71
Fritillaries tortoiseshells and their relatives. Butterflies. Card DPE 71. British Museum. Natural History. 1982
The Brown Butterflies and their Relatives. British Museum. Card DPE 70
The Brown Butterflies and their Relatives. British Museum. Card EN 70
British Butterflies. The Small Tortoiseshell. British Museum. 1983
British Library. Becket Leaves. J. Paul Getty. Henry II exiles Beckets relations. English. About 1230 40. 1987. Henry Stone
British Butterflies. Common bLue. Red Admiral. Small Tortoiseshell. J. Salmon Ltd. Cameracolour. Multi View
The British Library. The Becket Leaves. Henry II Exiles Becket Relations. Henry Stone