Colored lantern slide detail of the frieze on the Turtles building at Uxmal.

Colored lantern slide detail of the roof comb decoration on the Dover's building at Uxmal.

Colored lantern slide detail of the roof comb decoration on the Dover's building at Uxmal.

Colored lantern slide of an intricately carved stele on its side at Uxmal.

Colored lantern slide of archaeologists studying stele amidst rubble at Uxmal.

Colored lantern slide of a small temple building at Uxmal.

Colored lantern slide of a stone arch over the road at Labnah, Uxmal.

Colored lantern slide of the Uxmal sail building group.

Colored lantern slide detail of the friezes of the Uxmal sail building group.

Colored lantern slide detail of the alter step inside the Uxmal Sail building.

Black and white lantern slide of three men working on a Pan American six seater plane, while two men stand nearby looking toward the camera.

Black and white lantern slide of an aerial view of Campeche, Mexico.

Black and white lantern slide of an airplane on an airstrip. Behind the plane is a crowd of people. The plane has "Correo Aereo" written on its left wing and "X-ABC" written on its right wing.

Black and white lantern slide of a Pan American Ford trimotor 10 passenger plane on an airport runway. The plan has "X-ABCF" written on its tail.

Black and white lantern slide of two people standing under a lintel, with two other people standing nearby at Chichen Itza.

Black and white lantern slide of six men and two women standing under a tent

Black and white lantern slide of three men and four women

Black and white lantern slide of three people standing next to an automobile on a very rocky road in Yucatan, Mexico.

Black and white lantern slide sketch map of archaeological sites in Yucatan, Mexico.

Black and white lantern slide of people waiting on a railroad platform to baord a train in Yucatan, Mexico.

Black and white lantern slide of five men at the front of a train engine turning it manually.

Black and white lantern slide of an indigenous man in a tall hat standing in front of a Model T Ford automobile near Uxmal, Mexico.

Black and white lantern slide of a ruined tower at Chicen Itza with construction scaffolding and a worker on top.

Black and white lantern slide of the Temple of the Warriors at Chichen Itza taken from the top of the Castillo steps. A boy wearing a hat and backpack stands near the camera on the steps.