Buffalo Gasoline Motor Co.

Vintage Machinery

The company was founded in 1899 to build four stroke engines. Though there is little history online, it appears it was a substantial business. More here.  
Wikipedia mentions an automobile chassis and then a complete car were briefly marketed in 1902 and 03 but I can not confirm that, the ads I've found only show marine and utility engines. It appears the company was in business from 1899 to at least the later twenties.