In the 1930s, red brick, finely crafted stonework, and a colonnade reminiscent of a Greek temple gave Havre an imposing federal symbol and expressed optimism during economic depression. It was one of only three post offices of its size constructed in towns with populations under 10,000. Standard federal blueprints called for a two-story Neoclassical building, and construction began in 1930. By June 1931, when the cornerstone was ceremonially laid, the building was nearly complete. Inside a massive block, officials placed a box crafted of Butte copper, smelted at Anaconda, rolled into sheets at Great Falls, and formed by Montana workmen; containing local memorabilia, it was a gift of the Montana Power Company. Construction then halted temporarily so funding could be secured for a third-story federal court needed to prosecute bootleggers bringing liquor from Canada during Prohibition, making Havre’s post office unique because its standardized blueprints were altered. The building served as a post office until 1995 and remains an important anchor to the historic district.