Spaulding Manufacturing Company of Grinnell, Iowa built Brass Era automobiles from 1910 to 1916.

[7][2] Henry W. Spaulding arrived in Iowa in 1876 where he set up shop as a blacksmith and carriage manufacturer in Grinnell.

At the turn of the century the Spaulding Manufacturing Company was the oldest and largest producer of vehicles west of the Mississippi.

[2][8] Henry Spaulding's sons, Frederick E. and Ernest H. joined their father in the family business.

[8][2] In 1913 the Spaulding was revised as Model G with a 40 hp Buda four-cylinder engine on a 120- inch wheelbase.

Called the Spaulding 40, and priced in the $1,800 (equivalent to $56,506 in 2024) range, it remained in this configuration until the end of automobile production.

In 1915 Spaulding offered a model called the Sleeping Car (predating Nash by 20 years), which provided overnight accommodations.

Difficulty in getting parts transported to Grinnell and under-financing caused the end for the Spaulding car in 1916.