Photo from the October, 1918 issue of Tractor World magazine.
I discovered this story from the site, FarmandDairy.com, which recently covered this short-lived Pontiac 15-30 tractor. It was outdated by the time it was produced, requiring too much maintenance, so never stood a chance.
Go here to read the rest of the story about the Pontiac Tractor at Farm and Dairy.