File:Second helper and safety person Frank McKinnon shovels ground limestone into a furnace... Le second assistant et responsable de la sécurité Frank McKinnon pellette de la chaux moulue dans un four... (43854115505).jpg
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Second_helper_and_safety_person_Frank_McKinnon_shovels_ground_limestone_into_a_furnace..._Le_second_assistant_et_responsable_de_la_sécurité_Frank_McKinnon_pellette_de_la_chaux_moulue_dans_un_four..._(43854115505).jpg (640 × 538 pixels, file size: 42 KB, MIME type: image/jpeg)