The "Dodo-Postcards" watermark is NOT on the actual card – it is an online watermark only.
Charles I at Oxford. The Happy Days. Tuck. Oilette. Postcard 9518. Oxford Pageant. Ser. III. A. Ludovici
Charles I at Oxford. The Happy Days. Tuck. Oilette. Connoisseur. Ser. III. Postcard 2785. A. Ludovici
With Loving Thoughts for Your Birthday. If any little wish of mine can bring you happy days. W. and K. Series 5009. 1922
Birthday Greetings. Though Time passes. Friendship stays May it bring you happy days. B. 234 3. Rotary Photo. RP
Birthday Greetings. Though Time passes Friendship stays May it bring you happy days. Rotary Photo. 1921
Birthday Greetings. May all your days be happy days. The Philco Publishing. No. 2749. 1913
Many Happy Days. The Star Series. G. D. and D
Many Happy Days. The Popular Series. 167