The first U.S. Navy Curtiss SOC-1 Seagull, BuNo 9856, 30 October 1935. The Navy will spend the next ten years trying to find a better float plane, but the SOC will soldier on through all of World War II.
80-G-16118 Petlyakov PE-8 (Soviet Heavy Bomber)
This bomber brought Stalin's Deputy, Molotov, 'Iron Ass', to Washington. He carried a handgun at all times and his own rations .... you can be sure the bomber crew was no random lottery.