Howard Hughes (right) and Earl Martyn inside of the HK-1, Hughes Flying Boat, which was near completion on Terminal Island in the Los Angeles Harbor. The Hughes Flying Boat, also called the Spruce Goose, was the largest plane in the world.
Description given with photo: "Hughes Arrives For Hearing, Washington: Plane manufacturer Howard Hughes arrives for the Senate War Investigating Subcommittee hearing on August 6th. Credit (ACME) 8-9-47."