The "Dodo-Postcards" watermark is NOT on the actual card – it is an online watermark only.
HM The Queen and HRH The Duke of Edinburgh. Peter Grugeon. Charles Skiltons and Fry Ltd. PM Keighley West Yorkshire. 1978
H. M. The Queen. Peter Grugeon. Charles Skilton
H. M. The Queen. Charles Skilton and Fry. Peter Grugeon. 1977
H. M. The Queen. Charles Skilton and Fry. Peter Grugeon
The Queen Elizabeth II. Peter Grugeon. Charles Skilton and Fry. Great Britain. N. 502. Postcard
H. M. The Queen. Charles Skilton and Fry Ltd. Peter Grugeon. 1977