We Found A Newspaper Page That Proves That It Exists!
From The Lost Media Wiki
< The Three Railway Engines (lost live BBC broadcast adaptation of "The Railway Series" books; 1953)
Click on the link to go to its page, then click on the picture to open it up in full screen. http://forums.lostmediawiki.com/thread/3275/sad-story-henry-1953-version?page=1&scrollTo=22991