Or at least miniature pictures of characters. Sort of.
Looking back at some old copies of Justice League America and Justice League Europe recently and I remembered the little pictures of characters that used to appear in the issue number box on DC comics back in the early 90s. Oddly, despite the larger membership at the time, the JLA only had two pairs:
JLE fared a little better:
and even managed to get a few more in after their revamp and new members:
I’d thought for a while that JLA/JLE were the only titles with those but a quick look through my collection turned up these from Green Lantern:
A couple from the Justice Society
(There was a Wildcat one but he was largely obscured by the cover art) as well as some odds and sods:
A little detail on the cover which always appealed to me for some reason.