Thanks for all the feedback comic book community. Very interesting and knowledgable stuff, gives me a much better understanding of this book.
I've sent some of my fathers childhood collection to CGC, and all come back blue universal, which is why this green label threw me for a loop.
I am going to hold on to this one for a while because there does seem to be something special and rare about it as it was no fault of human destruction but a problem at the staple factory. Cool.
And I love the cover, start of a great new Avengers line- up?? and Captain America screaming "AVENGERS ASSEMBLE!!!"....... doesn't get much better than that.
Thank you!!