Elsa Beskow was a popular children's author and artist from Sweden. The above postcards were published in the 1920's by Axel Eliassons, Stockholm.
Left: Published by Birkagardens Forlag, Stockholm c. 1945. Center: "The Sun Egg" Published by Birkagardens Forlag, Stockholm c. 1945. Left: Modern continental. The fairy is holding a sign that says "Happy Frog Serving Note: It is forbidden for guests to eat each other up."
The three above are a few examples of Disney postcards that Valentine's of London published in the 1930's.
Grace Drayton (aka Wiederseim) was an early female comic artist from the U.S. She was also the creator of the Campbell's Soup Kids. Her Halloween postcards published by Raphael Tuck of London are scarce.
Postcards by Marie Flatscher, published in the 1930s by Meissner & Buch (a German publisher known for quality printing). PFB also published a number of her postcards. Flatscher's colorful postcards are popular on eBay.
Freddie Langeler (1900-1948), from the Netherlands, was an illustrator of comic strips and children's books. The cards above are all vintage postcards. One is postmarked 1927 so they may all be from around this time.
These postcards were all published by C.W. Faulkner of London c. the 1910s. The print quality of many of the Parkinson cards is outstanding. For more information and examples of her work, please see Dawn & Peter Cope's, Postcards from the Nursery.
I haven't been able to find out anything about this artist. Was he German? Swiss? His name seems to be Scandanavian. While there is a profusion of unexciting cards out there by him, others are very nice. Left: Posted in Zurich in 1933. Published by Becro-Pastell. Center-left: Posted in Germany in 1936. This and the two cards to the right were all published by HWB. Center-right: Posted in Leipzig in 1929.Right: Posted in Helsinki in 1937.
Schenkel was a German children's book illustrator. Left: Published in Stuttgart, publisher unknown. Center: Published by Meissner & Buch c. 1916. Right: Published by R.K. and posted in Stuttgart in 1928.
Roberto Sgrilli (1897-1985) was an Italian comic artist and painter.
Aina Stenberg a.k.a Aina Stenberg MasOlle (1885-1975) was a Swedish artist. In Sweden her advent calendars were also very popular. Elves (Tomte), fairies, and other folklore are popular subjects within her art.
The five cards shown were published by Eskil Holm, Stockholm. The dates of posting appear to range from 1911-1938.