Black and white photograph of landscape of the southwest taken from Adivino (Pyramid of the Magician) in Mexico

Black and white photograph of mountain range taken from Adivino (Pyramid of the Magician) in Mexico. Coordinates of several mountains are written in pencil on the photograph.

Black and white photograph of mountain range taken from Adivino (Pyramid of the Magician) in Mexico

Black and white photograph of the front of Adivino (Pyramid of the Magician) in Uxmal. A doorway is visible at the top of the pyramid with carvings on the surrounding walls.

Black and white photograph of the back of Adivino (Pyramid of the Magician) in Uxmal.

Black and white photograph of nine people, seven men and two women, in a cavern.

Black and white photograph of nine people, seven men and two women, standing next to a railroad coach.

Black and white photograph of five people, three men and two women, next to a sign at the Merida School of Fine Arts.

Black and white photograph of two women in front of a stone wall and palm trees.

Black and white photograph of four people, three men and one woman, at a southwestimming pool. The pool is between two buildings with palm trees lining a path to the pool. An advertisement painted on the side of a building reads, ""El Aguila" S.A."

Black and white photograph of six people standing on a Mayan temple.

Black and white photograph of four people, two men and two women, standing in a forest.

Black and white photograph of seven people standing among ruins. Two Mayan statues are visible.

Black and white photograph of a man standing among ruins. Several Mayan statues are visible in front of a stone wall.

Black and white photograph of a horizon line with buildings and roads visible in the foreground.

Black and white photograph aerial view of Campeche, Mexico

Black and white photograph 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 photograph aerial view of Campeche, Mexico

Black and white photograph of a tree-filled landscape intersected by roads taken from an airplane.

Black and white photograph of an airplane which reads "X-ABC" on its wing and "62" on its tail. The image of the globe on a bird's wing is painted on the side of the aircraft. Three men are working on the plane, standing either on top of the plane or…

Black and white photograph of crowds of people standing in an intersection looking up at a five-story building.

Black and white photograph of the front of a five-story building, looking down a busy street. Several store signs are visible, with the closest sign to the camera reading, "Fotografia Schlattman," and another visible sign further down the street…

Black and white photograph of a tree-lined path.

Black and white photograph of two women and a man standing on a hill overlooking a lake.