Film31 min640×480

The Jewels of Industry, Reel 1

Rothacker Industrial Films, Inc.

ScienceIndustrial and advertising

At the Internet Archive

Clips are not offered for this film: no licence or public-domain mark is recorded for it.

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Part 1 of 2 of a scientific education film explaining the manufacture of the abrasives Carborundum and Aloxite.

Notes on can: Mogull Bros No. 15584

Human-made No record of this work says a model made it. What this means.