The Gem was an automobile manufactured in both Jackson, Michigan

Jackson, Michigan

Jackson is a city located along Interstate 94 in the south central area of the U.S. state of Michigan, about west of Ann Arbor and south of Lansing. It is the county seat of Jackson County. As of the 2010 census, the city population was 33,534...

 and Grand Rapids, Michigan

Grand Rapids, Michigan

Grand Rapids is a city in the U.S. state of Michigan. The city is located on the Grand River about 40 miles east of Lake Michigan. As of the 2010 census, the city population was 188,040. In 2010, the Grand Rapids metropolitan area had a population of 774,160 and a combined statistical area, Grand...

 by the Gem Motor Car Company from 1917 to 1919. The company was incorporated in December, 1917, and early the next month it was announced that capitalization

Market capitalization

Market capitalization is a measurement of the value of the ownership interest that shareholders hold in a business enterprise. It is equal to the share price times the number of shares outstanding of a publicly traded company...

 was to be $250,000, with $150,000 yet to be issued. The Gem was a light, assembled car with a four-cylinder G.B.&S. engine. Originally the plan was to acquire the complete chassis

Chassis

A chassis consists of an internal framework that supports a man-made object. It is analogous to an animal's skeleton. An example of a chassis is the underpart of a motor vehicle, consisting of the frame with the wheels and machinery.- Vehicles :In the case of vehicles, the term chassis means the...

(from the Pontiac Chassis Company) and bodies (perhaps from Hayes) and complete the assembly of the cars in Grand Rapids. Gem planned to make some of the components itself eventually, though this appears not to have occurred. Only two models were produced, a 5-passenger touring car, selling for $845, and a light delivery van.