Buried Treasure: first porn?

From Dodson and Ross:

The year was 1929, and while it may have been a bad year for the economy, it was a red letter year for animation. That was the year that the first porn cartoon, Buried Treasure, was made. This short, animated feature concerns the exploits of Eveready Harton, and his attempt to bury his "treasure" in every cozy orifice that he finds - be it that of man, woman, donkey, or cow. Of course, what else can you do when you're stuck as a castaway on "Pecker" island.

The movie was so controversial that US labs refused to process it; so, it was developed in Cuba instead. Rumor has it that it was made in the late 20s for a private party honoring the venerable animator Winston McCay. And according to Walt Disney animator Ward Kimball:

"The first porno-cartoon was made in New York. It was called "Eveready Harton" and was made in the late 20's, silent, of course—by three studios. Each one did a section of it without telling the other studios what they were doing. Studio A finished the first part and gave the last drawing to Studio B [...] Involved were Max Fleischer, Paul Terry, and the Mutt and Jeff studio. They didn't see the finished product till the night of the big show. A couple of guys who were there tell me the laughter almost blew the top off the hotel where they were screening it..."

Later, the work was attributed to the efforts of George Stallings, George Canata, Rudy Zamora, Sr., and Walter Lantz. One thing I noticed while watching this film and The First American Porn Film: "A Free Ride" Circa 1915 was how male defined porn was from the outset. In this film, it is all about the dick with no clit in sight. At least, this movie takes a rather satirical view of the whole thing. And it is rather amusing to see the aptly named Eveready being led around by his fifth appendage. So, here is the first porn cartoon - what your great-great-grandparents used for wanking material.