Board Thread:General Discussion/@comment-6986530-20131211045616/@comment-6192846-20140425180258

No, all we know is that Irregular had to be inside the Clockworker's Doll sometime between the EC 550s (last time we see Allen in the Heavenly Yard) and the EC 990s (when we know Irregular is already in the MotC's womb). That doesn't mean Irregular had to be in the Doll before EC 609.