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uslhs.org...first of the modern Fresnel lenses was made in 1842. It was a fixed 3rd Order lens and...

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Page 1: uslhs.org...first of the modern Fresnel lenses was made in 1842. It was a fixed 3rd Order lens and installed in the Gravelines Lighthouse of France. The following year a 1st Order
Page 2: uslhs.org...first of the modern Fresnel lenses was made in 1842. It was a fixed 3rd Order lens and installed in the Gravelines Lighthouse of France. The following year a 1st Order
Page 3: uslhs.org...first of the modern Fresnel lenses was made in 1842. It was a fixed 3rd Order lens and installed in the Gravelines Lighthouse of France. The following year a 1st Order
Page 4: uslhs.org...first of the modern Fresnel lenses was made in 1842. It was a fixed 3rd Order lens and installed in the Gravelines Lighthouse of France. The following year a 1st Order
Page 5: uslhs.org...first of the modern Fresnel lenses was made in 1842. It was a fixed 3rd Order lens and installed in the Gravelines Lighthouse of France. The following year a 1st Order
Page 6: uslhs.org...first of the modern Fresnel lenses was made in 1842. It was a fixed 3rd Order lens and installed in the Gravelines Lighthouse of France. The following year a 1st Order
Page 7: uslhs.org...first of the modern Fresnel lenses was made in 1842. It was a fixed 3rd Order lens and installed in the Gravelines Lighthouse of France. The following year a 1st Order
Page 8: uslhs.org...first of the modern Fresnel lenses was made in 1842. It was a fixed 3rd Order lens and installed in the Gravelines Lighthouse of France. The following year a 1st Order

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