That is the copyright date not the production year. it just means that Harry had it in the works and copyrighted it earlier than the others.. it might have been in the works for last year and for one reason or the other was moved back to a 2011 release. This has happened in the past with other lighthouses. I just can't remember them off of the top of my head, no bald jokes Scroope..

Mark Wagner in the forums, got what the other error and emailed me the correct error without me showing an image of it.. Since it was the only release I didn't include the flag, he surmised it is the HL396 Chicago Harbor SE Guide Wall Light that has the error..