Most definitely Golden's work. That poster was available by mail through an advertisement in Marvel Comics in the early 1980's. I think the price was $1, but I could easily be mistaken on that.

The stylized "G" was the signature that Golden used in his early days (although not as early as when he used the big "G outline" sig). Later on (roughly '83 or '84 or so) he switched to a circular stylized "MG" glyph.

Reading now:  White Tiger mini-series; X-Statix Omni
 
Awesome new acquisition:  X-Statix Omnibus (still waiting for my copy of Marvel Firsts 1960's to arrive, I'm sure that will qualify)
 
...with great power comes -- great responsibility! 
Last Edited By: comicsatemybrain Dec 13 09 1:39 AM. Edited 1 times.