О фильме
A look at the manufacture of optical lenses, and their many uses throughout the different industries; from microscopes to spectacles to full use in the war effort.
Описание на русском пока не добавлено.
A look at the manufacture of optical lenses, and their many uses throughout the different industries; from microscopes to spectacles to full use in the war effort.
Описание на русском пока не добавлено.
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