3. Moulding a combustion chamber in sand, 1936
Kalamazoo Stove Company, moulding a combustion chamber in sand, 1936. "The mold must be perfect, the sand of the right consistency and must hold its shape as the hot iron flows into the opening. Only experts are entrusted with this job." #2 of 10 (some are missing). Photographed by Mamie L. Austin.