A signed Avengers Funko Pop figure, autographed in-person by Robert Downey Jr. as Tony Stark / Iron Man. He is quite difficult to obtain. In-Person Signature. Authentication: GA (Global Authentics) Certification: Each item includes an individual GA certificate of authenticity. Certification numbers will vary. Collector Note: Signed Funko Pop figures featuring Robert Downey Jr. as Tony Stark / Iron Man are highly desirable. Due to his limited signing appearances, authenticated in-person signatures are especially sought after by collectors of Marvel and superhero film memorabilia. Multiple pieces are available, all of the same high quality, and each is individually authenticated and display-ready. A standout collectible from one of the most iconic characters in the Marvel Cinematic Universe.