September 29, 1890
To: Ethan Keith, Galesburg, MI
From: McCormick Harvesting Machine Company, Kalamazoo, MI
His letter was sent to the Chicago office with an urgent request that they come see his grain carrier.
McCormick Harvesting Machine Company
J. H. Sanborn, General Agent,
Kalamazoo, Mich. Sept-29-1890.
E. B. Keith.
Your letter was forwarded to Chicago with an urgent request that they come here to see your Machine as soon as possible to get around to it.
J H Sanborn
 Ethan’s Grain Carrier invention which received a patent on April 8, 1890