I've plowed through All-Star and All-Winners. I've checked Comics Cavalcade and World's Finest. I've even checked Flash Comics on the off-chance of something with Flash and Hawkman. Lots of empties.
Then I checked early Silver Age and came up empty through Justice League of America and Avengers. And X-Men. And Doom Patrol, in a fit of desperation. Not even Mystery In Space.
Not Astro City being particularly retro either.