Back in the late 80's, early 90's, there use to be a Comic book store in the biggest mall in Puerto Rico that had on the side window a huge poster with all Marvel Comic characters. I have look everywhere for it and haven't been able to find it. Any suggestions on where I can find this hidden treasure?

I just did a search on "Marvel Comics Poster" and it came back with 329 listings. You might try that. And the comic book store I go to has old and new posters. So you might try that as well.

DX, it is the wall size poster of Guide to the marvel universe handbooks covers linked together from the series from the mid to late 80's. I have it and it is something like 60" x 40". I don't have it displayed anymore, but I'd bet this is the poster you are looking for.

you searched ebay?

Yeah, that's the one. Anywhere I can find it? I couldn't find any on ebay.

I found a pic on the web, but no place that sells it.