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1951 MONTAGE Workers reheating glass in a furnace to make optical glass / United Kingdom Stock Footage
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1951 MONTAGE Workers reheating glass in a furnace to make optical glass / United Kingdom

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1951 MONTAGE Workers reheating glass in a furnace to make optical glass / United Kingdom
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1951 MONTAGE Workers assembling a lighthouse lantern / United Kingdom Stock Footage
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1951 MONTAGE Workers assembling a lighthouse lantern / United Kingdom

Pre-K - Higher Ed
1951 MONTAGE Workers assembling a lighthouse lantern / United Kingdom
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1951 MONTAGE Workers breaking an optical glass mold then sorting through the pieces / United Kingdom Stock Footage
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1951 MONTAGE Workers breaking an optical glass mold then sorting through the pieces / United Kingdom

Pre-K - Higher Ed
1951 MONTAGE Workers breaking an optical glass mold then sorting through the pieces / United Kingdom
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