Construction and framing of a computer room addition at the base of the 150-foot tower telescope, Mount Wilson Observatory. This side view shows the steel framing for the exterior walls and a portion of the roof. An unidentified construction worker...
Construction and framing of a computer room addition at the base of the 150-foot tower telescope, Mount Wilson Observatory. The steel framing for the walls is seen, as is the partially-completed roof. An unidentified construction worker stands...
Installation of reinforcing rods in the floor of the 100-inch telescope observatory dome, Mount Wilson Observatory. A construction worker is standing at the far end of the floor area, with parts of some of the construction equipment nearby. The...
Concrete mixer for construction of a water reservoir, Mount Wilson. Four unidentified construction workers are posed around the concrete mixer and surrounding construction equipment. Wooden scaffolding and platforms have been built around the...
Construction of steel framing for the Snow telescope building, Mount Wilson Observatory, as seen from the coleostat pier. The stone pillars are in the foreground; the steel framing for the building rises above the pillars. Construction equipment is...
The rolling shelter of the Snow telescope building under construction, Mount Wilson Observatory. The two (2) men visible are Ross and Peterson. Scaffolding surrounds the stone pillars at the far end of he rolling shelter. The roofs of both the...
Early construction of the 60-foot tower adjacent to the Snow telescope building, Mount Wilson Observatory. Two (2) unidentified construction workers stand near a wooden frame for the base of the tower. The clapboard sides of the Snow telescope...
Stone crusher and form for pier for 60-inch telescope dome, Mount Wilson Observatory. Unidentified construction workers are spread out around the construction site. The stone crusher machine is seen on the left-hand side of the photograph. Near the...
Erection of metal columns for the wall of the 60-inch telescope building, Mount Wilson Observatory. Several unidentified construction workers stand in front of the steel support columns, below a system of ropes and pulleys. Behind them, on the...
Construction of the base of the 60-inch telescope dome building, Mount Wilson Observatory. Unidentified construction workers stand on and around the steel structural framework and other scaffolding. Construction materials are seen in the area.
Construction of the foundation for a large water reservoir, Mount Wilson. Two unidentified construction workers stand in the formwork for the reservoir's foundation, pouring concrete from a wheelbarrow. Three other unidentified construction workers...
Construction of the monastery annex as seen from the courtyard, Mount Wilson Observatory. The Monastery served as a dormitory for visiting scientists. In this photograph, one sees the scaffolding and construction of the second-story walls of the...
Construction of a new museum, Mount Wilson Observatory. An unidentified construction worker stands next to what appears to be a divided wooden box. Stacks of panels of wood(?) are seen behind him.
Construction of a new museum building, Mount Wilson. What si presumably the building's facade faces the camera, and is covered with scaffolding. An unidentified construction worker, seen near the roof line, sprays concrete into the wire formwork....
Constructing the foundation for new wing of Mount Wilson Observatory's office building on 813 Santa Barbara Street, Pasadena. Large construction vehicles are seen inside the foundation parameters. Three unidentified men stand on the sidewalk,...