Collection, undated, of postcards compiled by the Michigan Technological University Archives and Copper Country Historical Collections in Houghton, Michigan. The collection primarily consists of images of copper mines and mining, cities and towns located in the Keweenaw Peninsula, and views of Michigan Technological University (also known as Michigan Mining School, Michigan College of Mines, and Michigan College of Mining and Technology).

Collection, undated, of postcards compiled by the Michigan Technological University Archives and Copper Country Historical Collections in Houghton, Michigan. The collection primarily consists of images of copper mines and mining, cities and towns located in the Keweenaw Peninsula, and views of Michigan Technological University (also known as Michigan Mining School, Michigan College of Mines, and Michigan College of Mining and Technology).

Collection, undated, of postcards compiled by the Michigan Technological University Archives and Copper Country Historical Collections in Houghton, Michigan. The collection primarily consists of images of copper mines and mining, cities and towns located in the Keweenaw Peninsula, and views of Michigan Technological University (also known as Michigan Mining School, Michigan College of Mines, and Michigan College of Mining and Technology).

Collection, undated, of postcards compiled by the Michigan Technological University Archives and Copper Country Historical Collections in Houghton, Michigan. The collection primarily consists of images of copper mines and mining, cities and towns located in the Keweenaw Peninsula, and views of Michigan Technological University (also known as Michigan Mining School, Michigan College of Mines, and Michigan College of Mining and Technology).

Collection, undated, of postcards compiled by the Michigan Technological University Archives and Copper Country Historical Collections in Houghton, Michigan. The collection primarily consists of images of copper mines and mining, cities and towns located in the Keweenaw Peninsula, and views of Michigan Technological University (also known as Michigan Mining School, Michigan College of Mines, and Michigan College of Mining and Technology).

Collection, undated, of postcards compiled by the Michigan Technological University Archives and Copper Country Historical Collections in Houghton, Michigan. The collection primarily consists of images of copper mines and mining, cities and towns located in the Keweenaw Peninsula, and views of Michigan Technological University (also known as Michigan Mining School, Michigan College of Mines, and Michigan College of Mining and Technology).

Collection, undated, of postcards compiled by the Michigan Technological University Archives and Copper Country Historical Collections in Houghton, Michigan. The collection primarily consists of images of copper mines and mining, cities and towns located in the Keweenaw Peninsula, and views of Michigan Technological University (also known as Michigan Mining School, Michigan College of Mines, and Michigan College of Mining and Technology).

Collection, undated, of postcards compiled by the Michigan Technological University Archives and Copper Country Historical Collections in Houghton, Michigan. The collection primarily consists of images of copper mines and mining, cities and towns located in the Keweenaw Peninsula, and views of Michigan Technological University (also known as Michigan Mining School, Michigan College of Mines, and Michigan College of Mining and Technology).

Collection, undated, of postcards compiled by the Michigan Technological University Archives and Copper Country Historical Collections in Houghton, Michigan. The collection primarily consists of images of copper mines and mining, cities and towns located in the Keweenaw Peninsula, and views of Michigan Technological University (also known as Michigan Mining School, Michigan College of Mines, and Michigan College of Mining and Technology).

Collection, undated, of postcards compiled by the Michigan Technological University Archives and Copper Country Historical Collections in Houghton, Michigan. The collection primarily consists of images of copper mines and mining, cities and towns located in the Keweenaw Peninsula, and views of Michigan Technological University (also known as Michigan Mining School, Michigan College of Mines, and Michigan College of Mining and Technology).