What notes are in a Minor six chord?

[graphicsgeezer]

I spelled out the notes of the minor six chord as well as the intervals in the chord to indicate that the base chord is a minor triad. Why else would it be called a minor six chord? I put the information about the major sixth interval in my post as an afterthought.

The answer with 1, 3b, 5 and 6 was all I needed. I was under the impression that the 6th note would be flat because that's what happens in a 7th chord. Thanks for clearing that up.