"Minnesota Mining & Manufacturing Co." Letterhead

ID: 1268 ~ Source: Minnesota Historical Society

This file appears in: "The Mining"

Original 3M letterhead.

This file appears in: "The Mining"

"The Mining"

By Marjorie Pearson, Summit Envirosolutions, Inc.

3M stands for Minnesota Mining and Manufacturing Company. Except for limited efforts to extract low-grade corundum from Crystal Bay, Minnesota, for abrasives in 1904, the company has done no mining. …