The "Dodo-Postcards" watermark is NOT on the actual card – it is an online watermark only.
Old Postcard. Three Little Kittens. Valentine. 1918
Three Little Kittens. Valentine. Real Photo Animal Series. RP
Three little kittens. Valentines Series. 1921
Three Little Beauties. Kittens. Valentine. RP. 1955
Cats. Kittens. Three Little Maids are we. Free Lance Photographers. Plastichrome. Colourpicture Publishers
Three Little Kittens. Rotary. 1912
Greetings. With Love and Best Wishes. Three Little Kittens. W. and K. RP. 1923
Three Little Kittens. Cats. W. and K. RP. 1929