Brass Era Car Front Seats

[1913Moline]

My dad probably bought these off some farmer’s porch 50+ years ago. They seem to be high quality but don’t seem to wrap around as much as 1909 vintage seats from a car with no doors. There is also a ring that looks like a robe strap attached. That would mean a car with doors maybe later teens?? I suppose they could be buggy seats but seem too fancy. 

 

Seems like really big diamond upholstery too so a bit confusing. Jackson spring cushion company Jackson, Michigan tag on one. 

 

Any clues??

 

 

[Rust Rustler]

Good Morning,    Your seats are from a 1917 Studebaker.    Would they be available to purchase???

Thankyou,     Noel Adams