Rare 1950's Disney art

As some of you might know, thousand upon thousands of pages with Disney comics was produced in the forties, fifties and sixties in the USA. But only a small fraction of the original art has survived. What wasn't saved/stolen/given away was destroyed. Just imagine all the early art by Carl Barks, Paul Murry, Walt Kelly and others going up in flames at the Western Publishing office. Sigh...
But some way or another art to various stories/covers etc. survived. Here is one fine example.
The original art to a card sent out to subscribers of
Walt Disney's Comics and Stories in 1956!


And here's the printed version, front and back.


Knowing how few pages of Disney art that survived from the 40's through the late 60's I was surprised to see this. Not even having seen the printed card before, wich naturally is a rarity itself, I was happy to see that the original art had survived.
The art and lettering is by no-one else than Dick Moores of later "Gasoline Alley" fame.
Do you know about or have similar items in your collection? Please let me know. I'd be happy to post them here.