The "Dodo-Postcards" watermark is NOT on the actual card – it is an online watermark only.
The Approved One Penny Design. National Postal Museum
London. National Postal Museum. Approved One Penny Design. Emil Fuchs 1901. Postcard
Postage One Penny. The Penny Black. was Engraved by Frederick Heath. British Museum
One Penny. The Idea of an Ocean Penny Postage Came from an American. Elihu Burritt. U. S. Stamp Collection Magazine. 1980
1840 First Engraved Issue. The One Penny Black Adhesive Stamp. Cameo StampsLondon. The Foster Press City of London
The Stalls Hampstead Heath. Food and Drinks to Suit Every Taste for One Penny. G. D. and D. The Star. 1910
A ha penny each. Then I ll have two. One of red and one of blue. J. Salmon. 1938
Mr. Walter Passmore. My Queen and Romance. Novelettes. One Penny Weekly. Two Picture Postcards. 1905
