Close-Up: The Clark Apartments, 616 S Grand Ave, Bozeman MT.
In this Close-Up Google Street View, If you look with a magnifier you can almost make our the house # 616 over the door. Notice the Round Rocks from Mountain Streams, Used in Foundation & Porch Pillars. A Bozeman History Site gives the following

“Some new apartments and duplexes appeared in the south end of Bozeman during this period. The building at 219-221 West Arthur Street provides a simple but elegant example of the streamlined Moderne style. The two-story stucco duplex with flat roof has a symmetrical facade with an outset enclosed entry. On either side of the front steps is a metal banister designed with three concentric arcs. The porthole windows in the front doors mirror the pair of porthole windows in the second story above. Pairs of two-over two windows are set in the corners. The horizontal lines of these window divisions mimic the horizontal bars in the portholes as well as the lines of the metal railing above the outset entry. “

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