By Association of American Railroads. no.2505 (1988:August 31). Copy 2. Item is in English.

By Association of American Railroads. no.2506 (1988:September 14). Item is in English.

By Association of American Railroads. no.2506 (1988:September 14). Copy 2. Item is in English.

By Association of American Railroads. no.2507 (1988:September 28). Item is in English.

By Association of American Railroads. no.2507 (1988:September 28). Copy 2. Item is in English.

By Association of American Railroads. no.2508 (1988:October 12). Item is in English.

By Association of American Railroads. no.2508 (1988:October 12). Copy 2. Item is in English.

By Association of American Railroads. no.2509 (1988:October 26). Item is in English.

By Association of American Railroads. no.2509 (1988:October 26). Copy 2. Item is in English.

By Association of American Railroads. no.2510 (1988:November 9). Item is in English.