- Post Office - Calumet MIThe historic post office in Calumet, Michigan was constructed with federal Treasury Department funds ca. 1939. It is still in use today.
- Post Office Mural - Calumet MIThe mural "Copper Mining in Calumet" by Joe Lasker was commissioned by the federal Treasury Section of Fine Arts and installed in Calumet, Michigan's historic post office building in 1941. After a long and successful career the artist passed away in 2015.