Don't Call Me an Artist

Graffiti Street Art – US Air Buffalo

I found this large, and quite wonderful wheat pasted poster in San Francisco's SOMA district. It was on 9th St., between Mission and Minna, but it's since been painted over.

I've noticed a handful of these starting to crop up around the city. I didn't notice a signature when I snapped the pics. Anyone have any idea who the artist is?