File:Regrading operation showing excavation pit with sluicing equipment, Seattle, March 9, 1906 (SEATTLE 2546).jpg
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Regrading_operation_showing_excavation_pit_with_sluicing_equipment,_Seattle,_March_9,_1906_(SEATTLE_2546).jpg (768 × 333 pixels, file size: 68 KB, MIME type: image/jpeg)