File:Regrading operation showing excavation pit with sluicing equipment, Seattle, February 1, 1906 (SEATTLE 2522).jpg
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Regrading_operation_showing_excavation_pit_with_sluicing_equipment,_Seattle,_February_1,_1906_(SEATTLE_2522).jpg (768 × 328 pixels, file size: 55 KB, MIME type: image/jpeg)