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- Old advertising painted on exterior wall of brick building on Spruce Street; it reads: "Home of Paterson Silk Machinery Exchange." (9)
- The old chancery building, part of the complex of buildings that compose St. John the Baptist Cathedral. (1)
- Old Rogers locomotive (obtained from the Republic of Panama) at the location where it was built; 2 Market Street (site of current Paterson Museum). (10)
- Old tools in an unused room at Federal Supply. (2)
- Olive oil and pasta products for sale in the shop. Rocco caters to a predominantly Italian American, or Italian-speaking, clientele. (2)
- Omar Abukharma assembling a horizontal payoff machine. (2)
- Omar Abukharma attaching motors to a horizontal payoff machine (1)
- Omar Abukharma installing and testing tension bars on a horizontal pay-off machine. (6)
- Omar Abukharma installing motors on a pay-off machine. (2)
- Omar Abukharma testing motors on a horizontal payoff machine at Watson. (1)
- Omar Abukharma wiring motors in a horizontal pay-off machine. (3)
- Omar Abukharma works on machine. (17)
- One hundred year listing of employees at Watson with indications of years of service and military service from 1845-1945. (3)
- One of three or four types of sewing machine used in the shop. (1)
- Opening day 1961 newspaper ad on the wall of the Hot Grill's downstairs office. (1)
- The ordering/serving line in front of the preparation line. (4)
- Orders from customers for scaccie. The mother and son bake some for sale in the store, and others to order. (1)
- Organization officials and dignitaries stand on the stage. (8)
- Organization officials and dignitaries stand on the stage; Paterson mayor William Pascrell is at left. (2)
- Orlando Lee operates tanks with silk inside. (4)
- Outdoor scene painted on wheel cover on rear of small truck traveling along 21st Avenue. (2)
- Outdoor sign advertising go-go dancers. (2)
- Outdoor sign half block away from Libby's. (1)
- An overall view of the shop, excluding the counter area and the two front window display areas, taken from the area of the entry door. (1)