Public domain
New method of making pottery. Washington, D.C., June 17. Receiving end of the new electrically heated 45 foot tunnel kiln at the National Bureau of Standards. This kiln makes it possible to fire pottery in as little as 16 hours compared with 2 and 3 days or more in the older types of kilns, picture
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Credit lineNew method of making pottery. Washington, D.C., June 17. Receiving end of the new electrically heated 45 foot tunnel kiln at the National Bureau of Standards. This kiln makes it possible to fire potte. 1938-01-01. Harris & Ewing. Harris & Ewing Collection, Library of Congress. Public domain.