You have found a pop culture gem from the Marvel Studios Universe.
You are looking at a Signed Comic Covers Autograph Trading Card from Avenger: Age of Ultron.
This Signed Comic Covers Trading Card is Autographed by Writer Brian Michael Bendis & Cover Artist Aleksi Briclot.
It features New Avengers Vol. 1 #44 - August, 2004.
This card is numbered AOU-BB.
Produced by Upper Deck in 2015.