A great place to stop when in Detroit if your visiting the Benson Library is the Nation Automotive Research Library, 121 Gratiot (downtown Detroit). And they're open on Monday (when Benson isn't)
I was looking or auto show photos for a few "mystery" Fords, and did find a few things. One "find" was another article that mentioned the air cooled four cylinder Ford at the Detroit Auto Show in February 1904. Unfortunately, no pictures.
And now, on to Hershey.
I never cease to be amazed at what some folks came up with back in the very early days of the automobile. Those guys were some heavy thinkers, and very creative. Every time I hear of things like this, I am humbled.