As promised yesterday, perhaps the real piece of “History That Never Was”: a 1951 Yankees-Dodgers World Series Program. Another fully-printed edition, not just a cover. This is the Yankee Stadium version. To my knowledge, no copies of the Ebbets Field edition are still in existence, though at least the cover must have been printed. 

The content is fascinating, of course. Mini-biographies of all the Dodgers, including a very unfortunate photograph (under the circumstances) at the lower corner of page 25:

It wasn’t a precise substitution, but, as you see, in the actual 1951 World Series program, Mr. Thomson replaced Mr. Branca: