Envelope reads "Hetch Hetchy Mitchell tunnel cave-in 1931." Photograph shows two men speaking to eachother in front of a construction site. The man on the left wears a light color hat, eyeglasses, and a long overcoat. He carries a pad and pen and appears to be interviewing the man on the right. The man on the right is dressed in a dark color suit and hat and has his hands in his pockets. A pile of lumbar forms the backdrop for the lower portion of the frame. For more information about the Mitchell cave-in see h99.1.498.