From the December 7, 2016, MidWeek (DeKalb County, Illinois) "Looking Back.
1916, 100 Years Ago.
"Sawyer & Sons have an excellent attachment for Ford cars and one that is meeting with approval of every Ford owner to which it has been shown. The attachment consists of four extra hubs and an extra wheel and when a tire goes down, all that is necessary is to change the wheel, and this operation is done in the quickest imaginable time.
"The new feature is one that is being installed on several DeKalb cars and those already using it are loud in praise of its merits.
And, now we have the "spare tire."
Improvements in the Auto Industry. --RoadDog