RPPC c1930s Hydroelectric Power Plant Station Dam Postcard Small bit of edge and corner wear from stroage. Era: 1924–1949 (determined by the specific AZO stamp box layout with two squares up and two triangles down) Subject: Real Photo Postcard (RPPC) featuring an early industrial hydroelectric power generation station or water pumping facility. The main building shows classic early-century industrial architecture with a row of large arched multi-pane windows. Water discharges through a large culvert arch and a series of smaller arched spillways into the river below. Front Transcription No writing present on the front image. Back Transcription Stamp Box: AZO with two triangles pointing up (top corners) and two triangles pointing down (bottom corners). Printed Text: "POST CARD", "CORRESPONDENCE", "ADDRESS". Handwritten Marks: Pencil notation "2-" in the upper right corner; light pencil initials "CZ" in the lower left corner. Condition & Details for Buyers Unposted vintage real photo photographic postcard. The reverse side shows light surface smudging and edge toning from storage. The front photograph captures an authentic piece of vintage American industrial history. Perfect for collectors of early power plants, civil engineering, or regional utility infrastructure history.