This note pad, with its overt advertisement for Santa Fe passenger trains, could almost be mistaken for on-board stationery. But the printing on the next sheet of the note pad is faintly visible in the scan. The railway probably distributed it to travel agents.
The Santa Fe didn’t directly compete with the Great Northern. A more northernly railroad such as the Northern Pacific or even Union Pacific would have avoided the use of the word “great” in its slogans; while certainly not trademarked by Great Northern, that railway used it often enough in its advertising that its competitors wouldn’t want to remind people of the “two great trains” that connected Chicago and the Pacific Northwest.