| Equipment rosters showing the quantity of each class of equipment active during the ten years preceding the Era. |
| Edit |  | Notes |
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 | | Freight cars in NP service during the years before 1910 as shown in the ORERs of the time. |  | | Freight cars in NP service in the 1930 era as shown in the ORERs of the time. |  | | Freight cars in NP service during the years before 1940 as shown in the ORERs of the time. |  | | Refrigerators cars in NP service in the 1940 era as shown in the ORERs of the time.
|  | | Freight cars in NP service during the years before 1950 as shown in the ORERs of the time. |  | | Refrigerators cars in NP service in the 1950 era as shown in the ORERs of the time. |  | | Freight cars in NP service during the years before 1960 as shown in the ORERs of the time. |  | | Refrigerators cars in NP service in the 1960 era as shown in the ORERs of the time. |  | | Freight cars in NP service during the years before 1970 as shown in the ORERs of the time. |  | | Refrigerators cars in NP service in the 1970 era as shown in the ORERs of the time. |
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