Who? Where? When?

Hirhurim is sponsoring a Name The Mystery Rabbi contest. I am posting a picture and, in the comments section, entrants must guess the name of the rabbi. The first person to get it right wins. If no one guesses the name right, then the first person to guess the place in which he lived wins. After that, the person to guess the approximate decade in which the picture was taken wins.

The prize: A post listing you as the winner with a link to your website if you have one.

And here's the picture:

Who is the Mystery Rabbi?