Phonograph testing room, third floor, Building northwest corner, 1911-1912.
Figure 150. Phonograph speaker experimental room, third floor. Dynamo room, Building ca.
Figure 148.
Figure 146.
Figure 144.
Figure 151.
Figure 140.1890.
Figure 142. Gatehouse, 1902-1903.
Figure 147.
Figure 141. Gatehouse, January 1917. Bill Lyman, Photographic service department, third floor, Building looking south,
January 1917.Figure 138.
Figure 139. Building southeast comer,
September 23, 1911. Fred Ott’s room, third floor, Building southwest comer, April 1914. Gatehouse, 1890-1892. Third floor, Building north side, looking east, 1914. Dynamo room, Building date unknown. Music room, third floor, Building looking west, 1917.
Figure 149. Charles Dally, third floor, Building looking southwest, February 1913.
Figure 145.
XV
. Ground plan dynamo room, Building 1889. Edward Cary, NPS guide and former Edison employee, souvenir stand inside
gatehouse, April 22, 1969.
Figure 143
