Reign of the Supermen #509: Super-Commander Kent in the 7th Millennium!
Source: Adventures of Superman #600 (2002) Type: Spoof
In celebration of Adventures' 600th issue (which is really Superman vol.1's 600th issue), the then-current writers of the Superman books were asked to spoof the Superman daily comic strips of yesteryear. One of these, Mark Schultz and Dave Gibbons' spoof on old SF strips like Buck Rogers, is of interest to Reign of the Superman. I reproduce it in its entirety, watch out for the big reveal about our hero!