Friday I went to the Museum of Flight in Seattle.

This plane has flown Presidents Eisenhower, Kennedy, Johnson, and Nixon, as well as VIPs such as Nikita Khrushchev and Henry Kissinger.

The Boeing 80A-1 entered service in 1929.

The advent of the Model 80 brought some comfort to travel. The 80A had room for 18 passengers, a heated cabin, and leather seats. There were individual reading lights and the lavatory featured hot and cold running water. Although the 80 had a luxurious interior, flying was tough by today’s standards — the cabin wasn't pressurized, engine noise made conversation difficult, and despite heaters, the cabin was sometimes very cold.