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Title: Dr. Carlton H. Schlesman Explaining a Process of Oil Refining, Dr. Carlton H. Schlesman Explaining a Process of Oil Refining
Identifier: di_10881
Creator: Rittase, William M.
Dates: 1937
Resource: ExxonMobil historical collection
Description: A black and white photo of Dr. Carlton H. Schlesman explaining a process of oil refining to another man on a chalk board. On the back of the photo, there’s an inscription that reads, "Dr. Carlton H. Schlesman, research and development head of Socony-Vacuum oil Company is general Laboratories in Paulsboro, N.J. explaining a process of oil refining." There’s a stamp that reads, "Photo by, William M. Rittase, 247 S. 15th St, Phila Pa, Phone, Pen 1418. Print No. S.V. 6, 1937." In writing, it reads, "Used in Socony-Vacuum News, July 1937, p. 2." There’s a typed piece of paper that reads, "Please Return To:, Socony-Vacuum Oil Co., Inc., 26 Broadway - New York 4, N.Y., Advertising Dept."

Title: James Keegan, Harold C. Meyers, and Emil Mower Playing Baseball During Lunchtime, James Keegan, Harold C. Meyers, and Emil Mower Playing Baseball During Lunchtime
Identifier: di_10882
Creator: Rittase, William M.
Dates: 1940-10
Resource: ExxonMobil historical collection
Description: A black and white photo of employees during lunchtime, James Keegan, Harold C. Meyers, and Emil Mower. On the back of the photo, there’s an inscription that reads, "(SV140) Wham: We think he hit it. What’s your guess? In the picture, made during lunch hour at Paulsboro (N.J.) Works: James Keegan, Harold C. Meyers, Emil Mower." There’s a stamp that reads, "Photo by, William M. Rittase, 247 S. 15th St., Phila Pa, Phone, Pen 1418, Print No. SV. 140." There’s another stamp that reads, "S-V News Oct -- 1940." There’s a sticker that reads, "1940-1949 - Fairfax, NJ Geographical Subject." In red pencil, there’s a word that says, "Wham!" In blue pencil, it reads, "Hist file: US - Research - Paulsboro

Title: Man Filling Quart Cans with Mobiloil, Man Filling Quart Cans with Mobiloil
Identifier: di_10901
Creator: Rittase, William M.
Resource: ExxonMobil historical collection
Description: A black and white photo of a man filling quart cans with oil on an automatic machine. On the photo, there’s an inscription that reads, "We employ the most modern equipment!" On the back of the photo there’s an inscription that reads, "Filling quart cans with Mobiloil automatically at the refinery in Paulsboro, N.J., of the Socony-Vacuum Oil Company, Inc." On the back, there’s two stamps that read, "Photo by William Rittase, 247 S. 15 St., Phila Pa, Phone, Pen 1418, Print No. SV.127," and, "Socony-Vacuum Oil Co. Inc, Photo Library, 26 Broadway, New York 4, N.Y." with the pegasus logo.

Title: Mobiloil BB Can Filling, Mobiloil BB Can Filling
Identifier: di_10902
Creator: Rittase, William M.
Dates: 1940
Resource: ExxonMobil historical collection
Description: A black and white photo of a man filling boxes of Mobiloil "BB". On the photo there’s an inscription that reads, "No squeaky boxes here!" On the back of the photo, there’s a stamp that reads, "Photo by, William M. Rittase, 247 S. 15th St., Phila Pa, Phone, Pen 1418, Print No. SV.131"

Title: Photoelectric Colorimeter, Photoelectric Colorimeter
Identifier: di_10879
Creator: Rittase, William M.
Dates: 1937
Resource: ExxonMobil historical collection
Description: A black and white photo of a man working on a machine called the photoelectric colorimeter. On the back of the photo, there’s an inscription that reads, "11. Photoelectric Colorimeter, While the color of an oil is not usually significant in itself, color may become very important in conjunction with other considerations. Uniformity of processing or the relative behavior of oils under certain conditions are examples of a need for precise color measurement. Most of the methods for measuring color involve the human eye to a greater or less degree but the human eye is often incapable of good precision and varies considerably from one time to another and among different individuals. In this colorimeter developed by the Research and Development Laboratories the human equation has been eliminated, hence it yields greater precision than is possible by visual methods of color measurement. (Research and Development Division)" There’s a stamp that reads, "Photo by, William M. Rittase, 247 S. 15th St., Phila Pa, Phone, Pen 1418, Print No. S.V. 20 1937."

Title: Street View of Paulsboro Laboratory Buildings, Street View of Paulsboro Laboratory Buildings
Identifier: di_10877
Creator: Rittase, William M.
Dates: 1936-1937
Resource: ExxonMobil historical collection
Description: A black and white photo of the labs at Paulsboro. On the back of the photo, there’s an inscription that reads, "3. Street View of Paulsboro Laboratory Buildings, The Research and Development Division occupies thirteen buildings located at Paulsboro, N.J., with a total floor space of 51, 000 square feet. Research in the field of organic chemistry and precision measurements such as those being carried on in the electrical field are made in laboratory buildings such as these. The Administrative Department of the Laboratory is also housed in this group of buildings. The Technical Service Division occupies 35, 500 square feet of floor space in five buildings. It is not possible to convey in photographs an adequate idea of the size of the plants of the laboratories, or to give more than a vague impression of the nature and complexity of the equipment. Nevertheless, the apparatus available for development work and testing varies from the finest precision instruments small enough to hold in the hand, to dynamometer engine, cold room, and still assemblies, costing up to $50, 000 each and weighing many tons. (Research and Development Division)" There’s also a stamp that reads, "Mobil Photo Library, Socony Mobil Oil Co., Inc., Socony Mobil Building, 150 East 42nd St., New York 17, N.Y." Another stamp reads, "Photo by William M. Rittase, 247 S. 15th St., Phila Pa, Phone, Pon 1418" In pencil it reads, "photo taken in 1936 or 1937." In pencil it reads, "4 1/4 pos."

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