Toronto/Grand Falls - green flag with two white stripes; between those stripes white "ABITBI-PRICE".
Presently known as Abitibi-Consolidated following the merger of merger of Abitibi-Price and Stone-Consolidated on May 29th, 1997.
From the company website:
Abitibi-Consolidated is a global leader in newsprint and uncoated groundwood (value-added groundwood) papers as well as a major producer of wood products, generating sales of $5.8 billion in 2004. The Company owns or is a partner in 26 paper mills, 22 sawmills, 5 remanufacturing facilities and 1 engineered wood facility in Canada, the U.S., the U.K., South Korea, China and Thailand.
It's fleet was/is used for shipping newsprint from its facilities.
Abitibi Paper Co. Ltd. & Price Paper Co. There would seem to be a error in the flag portrayal by Brown with a missing "i" i.e. the flag shows "ABITBI-PRICE" instead of [presumably] "ABITIBI-PRICE" being taken as a printing error as the name is correctly shown in the index. According to Wikipedia Abitibi Paper Co. Ltd. took a controlling interest in Price Bros. & Co. Ltd. in 1974 with a corporate name change in 1979 to Abitibi-Price Inc. eventually merging as noted by Phil.