500mm AGA Fresnel Lens
Rare 1910 Swedish AGA restored 500mm 4th Order Fresnel Lens with the even rarer AGA Sweden makers Stamp. Glass is lead Crown polished. This is the largest size Lens made for use in Lightships. It measures 23 1/2 " tall to the handles and 23" in Diameter. It has been through a laborious and extensive complete restoration, including high speed diamond polishing of each Crown Glass Segment. The entire Brass frame has been belted, polished, and Clear Powder Coated. This is probably the nicest 4th order Drum lens in Existence today.
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