The Nazi references in my copy are not that overt, although they are there (note the Germanic features on Goliath above - in fact he bears more than a passing resemblance to Goering). I think that the Egyptian taskmaster and his killing by Moses were not changed from the original, because the limited edition re-issue that's in press now has that same illustration. And the four sons are not any particular individual, although the Wicked Son is a Germanized Jew.
Syzk certainly had at the Nazis in other contexts, not only in his frankly political cartoons and illustrations but in his Judaica -- particularly in the Book of Esther, with Haman --
The text before Szyk reads, "the people Israel will be liberated from their persecutors." The hamentasch is a nice touch too.
Even in England, 1940, they wouldn't publish something suggesting the Reich was morally culpable. This one wasn't included
Page dedicated to German and Austrian Jews, 1938
Not sure about this one, I think there was another version with a swastika on the armband, and this is the "clean" version included.
I think the US Holocaust Museum has a few others, you might check the links. I'm not aware of a single, consolidated source of the unincluded pages.
http://www.ushmm.org/museum/exhibit/online/szyk/
http://www.ushmm.org/museum/exhibit/online/szyk/jewish/71420.htm
http://www.ushmm.org/museum/exhibit/online/szyk/jewish/93820.htm
http://www.szykhaggadah.com/release.htmlSzyk designed and painted the original artwork in Lodz, Poland, between 1934 and 1936, when European Jewry endured heightened abuses on the eve of World War II. His artwork drew parallels between the Passover narrative, with its Egyptian taskmasters, and the Nazi taskmasters, who were plotting the enslavement and death of the Jews of Europe. Illustrations included illuminated serpents and tigers with Nazi swastikas, their cut heads replaced with images of Hitler and Goering and among the Four Sons, with the "wicked son" portrayed with a Nazi armband. No publisher would produce it with German imagery, so Szyk had to remove them prior to publication. The Haggadah was originally printed in London in 1940, in a limited edition of 250 copies on calfskin vellum, with commentary by Anglo-Jewish historian Cecil Roth. Compared to the great illuminated manuscripts of the Middle Ages, it was produced by The Sun Engraving Company for the Beaconsfield Press.
At that time it was the most expensive new book in the world and has since become one of the most reproduced of any 20th century Passover Haggadah. "No edition until now," according to publisher Irvin Ungar "has been able to capture Szyk's palette which was one of unusual brightness and intensity; his virtuoso draftsmanship extraordinary in its detail. Our edition takes advantage of every recent advance in photography, color reproduction, and papermaking technology, and as such, our publication promises to be a bibliographic landmark on all levels."