This photo shows the addition added to the building in 1915.
Photo from the Burton Historical Collection.
Renovation work continues in 1915
Photo from the Burton Historical Collection.
The interior of the Post Office during the 1915 renovation
Photo from the Burton Historical Collection.
Workers wrap up an addition to the building on Aug. 1, 1915.
Photo from the Burton Historical Collection.
A decorative stone shield that flanked the main entrance.
The main entrance
Photo from the Walter P. Reuther Library.
The building's entrance
Photo from the Burton Historical Collection.
The main entrance
The main entrance
Photo from the Burton Historical Collection.
The building's opening in 1897
Photo from the Burton Historical Collection.
Mail trucks line up at one of the docks
Photo from the Burton Historical Collection.
The lobby of the post office in 1915
Photo from the Burton Historical Collection.
This aerial view shows the Federal Building in the center. The Dime Building can be seen to the north.
Part of the post office section of the building
Photo from the Burton Historical Collection.
The mailroom about 1915
Photo from the Burton Historical Collection.
The mailroom about 1915, after some modernizations.
Photo from the Burton Historical Collection.
The mailroom
Photo from the Burton Historical Collection.
The interior of the Federal Building under construction
Photo from the Burton Historical Collection.
Three of the postal windows inside the Federal Building
Photo from the Burton Historical Collection.
The interior of the Federal Building
Photo from the Burton Historical Collection.
The interior of the Federal Building
Photo from the Burton Historical Collection.
The interior of the Federal Building under construction
Photo from the Burton Historical Collection.
Work continues on the State Savings Bank in 1900 with the Federal Building in the background.
Photo from the Burton Historical Collection.
The Federal Building in 1900. The building under construction is the State Savings Bank.
Photo from the Burton Historical Collection.
Looking east toward the Federal Building. This photo shows how much of that part of downtown was still residential.
The tower provided Detroiters unparalleled views of the river and the city.
The Federal Building looking east. The top of Old City Hall can be seen in the distance.
Photo from the Library of Congress.
Everything in this photo is gone.
Photo from the Library of Congress.
A worker lowers the flag on the tiled roof.
Photo from the Walter P. Reuther Library.
The Federal Building, looking northeast.
Photo from the Library of Congress.
A view looking northwest.
Photo from the Library of Congress.
The Federal Building in 1906.
Photo from an old souvenir book.
Photo from the Library of Congress.
A detailed look at the Shelby Street side of the building in the 1920s. In the background is the Book-Cadillac Hotel.
This photo shows the Book-Cadillac, then a new building, in the 1920s.
Photo from the Detroit Free Press archives.
A view east along Fort Street toward the Federal Building.
A view of the western side of the building. The building in the back left is the Majestic Building.
Photo from the Burton Historical Collection.
The Federal Building around 1920.
Photo from the Burton Historical Collection.
A view of the Federal Building in 1913.
The tower towered over everything else in the city for several decades.
Photo from the Library of Congress.
The Federal Building in 1897.
An old photo of the Federal Building.
Photo from the Library of Congress.
Looking west along Fort Street at the Federal Building.
Photo from the Library of Congress.
The Federal Building shortly after it opened.
The Federal Building shorly before the clock was installed.
Photo from the Burton Historical Collection.
The finishing touches are put on the Federal Building's tower in 1897.
Workers labor on the tower in 1897, seven years after building started. Construction of such a building was a big undertaking.
The entrance of the Federal Building in 1897, shortly before it opened.
Construction on the Federal Building
Construction on the Federal Building continues.
Construction continues in 1897.
Construction on the Federal Building
The Post Office under construction on May 1, 1894, showing the Fort Street side. The tower is starting to take shape.
The Post Office under construction on May 1, 1894, showing the Lafayette Boulevard side.
Workers toil on the Federal Building in 1897.
Photo from the Burton Historical Collection.
The building under construction in July 1892.
The foundation is dedicated sometime in late 1890.
Photo from the Burton Historical Collection.
Excavation in 1890. In the era before heavy machinery, the work was done by hand and by horse.
Photo from the Burton Historical Collection.