An unabridged copy of the Narrative of the Life of Frederick Douglass, an American Slave would be considered a primary source, regardless of when the copy you have was published.

A primary source means that the document, work, or artifact was created at the time that is being studied by someone who had firsthand knowledge of the events. Unabridged means the work is in its complete, original form and has not been altered. Therefore, an unabridged copy of the Narrative of the Life of Frederick Douglass, an American Slave would be considered a primary source.

This is not to be confused with a copy of a primary source. Think of it as looking at a copy of the Declaration of Independence. A copy would be considered a primary source, since it was created in 1776 by the authors of the Declaration. However, very few people have access to the original document, because of its historical significance and value. So, people studying the primary source document from the time period are usually looking at a reproduction, or copy, of the original.

Your copy of the Narrative of the Life of Frederick Douglass, an American Slave was published in 1995, but it is a copy of an original document and is therefore a primary source.

Yes, Frederick Douglass's autobiography is definitely a primary source, regardless of when the actual book you have was published.  A primary source is simply one created by a person with first-hand knowledge of the events and times described and which was created at or near the time in question.

Of course, Douglass had first-hand knowledge of his own life.  As for the time element, his autobiography was, of course, not written during his childhood or his days as a slave.  However, it was still close enough in time to those events for it to qualify.

The date of publication is not relevant to whether something is a primary source.  What matters is who wrote it and when.