Many revision lists offer rollback links in their lists. Currently we know that this is the case for
- History page
- Changes lists (recent changes, watchlist)
- user contributions special page
We are not sure that this list is complete
- Find out, if the rollback link is added to any other place of mediawiki core but the lists mentioned above and the diff page
- It seems that the rollback link is added through Linker:generateRollback
- Another option is searching with mediawiki code search for one of the important functions / "rollback"