Sepia real-photo view of Grand Coulee Dam during construction, showing the massive concrete spillway with water pouring over it, the partially built powerhouse block at the base, and the reservoir backed up behind the dam amid arid hills.
White border; sepia-toned real photo print. "1918" printed in lower left corner (likely a negative/plate number rather than a date).
No postmark or stamp present. Divided-back 'POST CARD / CORRESPONDENCE / ADDRESS' imprint with dashed 'PLACE STAMP HERE' box. Collector's pencil notation 'RMLT 4 -' at top center. Real-photo card with white border; light foxing/toning along left edge.
Cite this card
Grand Coulee Dam under construction, Washington, postcard, c. 1915. PostalPast Collection. https://postalpast.com/postcard/grand-coulee-dam-under-construction-washington. Accessed October 5, 2026.