You mean Harding dual Windshield roadster? Ok, but in the same text: "The body is a 2 passenger roadster"!
And I wasn't mocking you, this one was really hard. I've some info of this car in at least 2 books and they all starts like "Considerably mistery surrounds the Harding despite the fact that one of these cars exist, a roadster......" and "Although one Harding still exists, it is a mystery make whose manufacturers are unknown...."!
That's why it was obviously an HARDing.