If memory serves me correctly, the Birney patents were assigned to a holding company (National Safety Car Co.??), and Birney's were built by many of the car builders of the time...Brill, American, St. Louis Car, and Cincinnati (not to be confused with their own 4-wheel lightweight) and maybe others. So unless I'm mistaken, it's entirely possible for a car to be both a Brill...and a Birney...which I believe is the case with this one. There's a lot more info on Birneys on the web, including a site devoted exclusively to them
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