Yeah, They make the statement that they were selling
the... well, here's what they said: "Undoubtedly the first
cartoon to feature an electronic computer."
p.223, by "Alexander", (Philadelphia Bulletin 12-Mar-1946)
My closest other find outside this catalog was a Robert Day
from all the way to 1953.
Quality Stuff.
John A.
But I do want to prove them wrong.