1938A — backtothefuture

"Only if it turns out that reality is actually nothing more than a holographic illusion created by the interplay of subatomic particles on a vast two-dimensional membrane."

This article covers a subject that has been deemed non-canon by either the author or the Back to the Future licensees, and thus should not be taken as a part of the "real" Back to the Future universe.

1938A was an ABC timeline. It was a version of 1938 where Emmett Brown purchased several copies of the first issue of Action Comics, to get money to upgrade the DeLorean.

Differences

"Emmett Brown" purchased ten issues of the first issue of Action Comics.
The ten issues were kept in pristine condition, as taken directly to 2015.

Appearances

Back to the Future (IDW Publishing)
- Back to the Future: Untold Tales and Alternate Timelines - Issue 4: "Emmett Brown Visits the Future"