Take the letter to Curgle Cranklehop in Tanaris.
I have studied many subjects in my time, and my latest fascination is with the snapjaw that occupy the beach in the Hinterlands. There's one in particular I'd like to see, a giant snapjaw named Gammerita. I'd like to go myself, but my research keeps me here. I think a picture of her would be the next best thing.
Take this letter to Curgle Cranklehop in Tanaris. She has created an invention for me that can capture a picture. She called it a "snapshot," I think...