This image shows an idealized view of the Detroit-Windsor Tunnel, shortly after construction was completed in 1930, and is the third major international crossing between Detroit and Windsor.

The description states:
The Detroit and Canada Tunnel, connecting Detroit and Windsor, Ontario, is the first vehicular subway ever built between two nations. It is approximately a mile long from portal to portal. The American portal is but a few hundred feet from the center of the financial and shopping districts of Detroit, which the Canadian end is located in the very heart of Windsor’s rapidly expanding business center.
–The cars shown indicate this image is from the 1920s. The postcard was used, and is dated 18 August 1932.

This image shows the massive building that housed both the Detroit News newspaper company, but also the broadcast facilities of radio station WWJ. The building was constructed in 1917 and occupied until 2014. The company has since moved to another much smaller building it shares with a former competitor, the Detroit Free Press.

The description states:
The Home of the Detroit News, fronting for more than 300 feet on Lafayette Boulevard and Second Street. This is considered one of the most complete and ideal newspaper plants in the world. — Visitors are always welcome and extended every courtesy.
–The radio station began operating with the call letters WWJ in 1922, and the cars shown indicate this image dates from the 20’s as well. The card was used, and is dated 18 August 1932.

This is a low aerial view of the Detroit Public Library building as it looked after construction in the 1920s. It is an Italian Renaissance style building.

There is no description on the back of this card. The building is still in use as the Detroit Public Library main branch, and houses their administrative offices.
This card was used and is dated 18 August 1932.

The Shrine of the Little Flower is named in honor of Saint Thérèse of Lisieux, who died of tuberculosis at the age of 24.
There is no description on the back of this card. This is an image of the second structure as it looked during construction. The building behind the tower was finished as two stories and includes a copper roof.
This was the home of the widely known Father Coughlin, who was a early supporter of the New Deal as outlined by Franklin Roosevelt, but broke with him early on when the new policies did not extend as far as he hoped.
This card was used and is dated 18 August 1932.

This image shows the once-named Methodist Episcopal Church located in Detroit, Michigan. It has changed names several times over the decades, with the changes in the Methodist Church in America, the largest group now known as the United Methodist Church.

There is no description on the back, and the front captions read:
Metropolitan M. E. Church, Woodward Ave, Between Chandler and Marston Avenues, Detroit, Mich.
–This building was completed in 1926, and has remained a Methodist church to the present day. in the 1940’s it was briefly the largest Methodist congregation in the world.
This card was used and is dated 18 August 1932.

This image shows the original home and current main branch of the Lapeer, Michigan District Library. This structure is named for the Newberry Award winning author Marguerite deAngeli who was born in Lapeer.

There is no description on the back of the card. The building was built in 1923, and the card likely dates to shortly after its completion. It is built in the Georgian Revival style.

This card shows the Marquette iron ore transfer dock in action, loading a ore carrier for a trip to the mills in  the south or east Great Lakes region.

There is no description printed on the back of the card. However, the sender made these comments:
Those little cars on top bring the ore to the dock {visible in the upper left, near the damaged portion of the card} and store it in the pockets along the dock. Those red things {the ones extending down toward the ship} are chutes which the ore comes down to the boat.
This card has a damaged postmark, but is likely from the 1920s.

This image shows the main building that housed the State Normal School in Marquette, Michigan. The name Normal School indicates it was established to train teachers. As the area around the school developed and became more populated, the name was changed several times, to the current Northern Michigan University.

There is no description on the back of the card. The fact that the card uses the name Normal School, which was changed in 1927, indicates that the card predates that event. In addition, the card was used and is dated 14 Oct 1924.