There's a new HM September 1979 sample on the official HM website. If you like, use the Links page on this here blog, or consult the internet yourself to find it.
Since the previous December 1984 sample is nowhere to be found, if you want this one I'd suggest you get it soon.
As before it's not the complete issue, with no complete stories, but for "Soft Landing" by Dan O'Bannon and Thomas Warkentin, which was adapted as an opening in the first HM movie.
It's too bad they take such a haphazard approach to page selection, but it's better than nothing I suppose.
Enjoy, as best you can.