usually just poster. Sometimes listed as "art print" if it was specially printed on nice paper by the artist (or the company)
I think that particular one from #62 was a promotional poster from Sears and it's a little harder to come by if my memory serves. It may have been printed again another time and included with something else, but I can't remember. I wouldn't say necessarily it's rare, just uncommon.

One other thing you could do is see if it's available on Larry Elmore's site as a print.

www.LarryElmore.com | Fantasy Artist

actually, I was confusing it with this one
GROGNARDIA: The Ads of Dragon: D&D Poster

I don't see the cover for #62 listed on his site as a print, but you could try and email him.

by the way, welcome to the site!

Mr. Elmore graciously replied on the same day. He didn't remember the cover piece and asked for an image. I sent him one I found on a dragonsfoot.com page. He says be does have that image available for print at 25.00USD and 40.00USD.

Also, note that his website should be complete by next week I believe.

Needless to say I'm stoked. This was a favorite image of mine in childhood and I am looking forward to framing a signed copy.

Tell him to fake-sign it "Ken Whitman"

Larry's new website is up. That art print is available on this page

Larry Elmore