No problem, Terry.

I found two old threads on other forums that state that the "E" is stamped on the door, but that Lionel ran out of the panel that had the door, so they substituted a similar part. Check https://ogrforum.ogaugerr.com/topic/lionel-402-info-needed?reply=29023674663479771#29023674663479771 for one of the threads.