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Dec. 20 British Official Photograph (Admiralty), Issued by C.O.I London. Crown Copyright Reserved. Admiralty bulletin No. 52. Details can now be given of improved underwater television equipment developed by the admiralty. It has been given trials in the Royal Research Ship Discovery II, and is describef in Admiralty Buletin No. 52, the equipment includes a split field stereoscopic attachment. OPS: A photograph taken from the TV screen of fish at 40 fathoms

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Admiralty Attachment Bulletin C.o.i Details Developed Fathoms Improved Includes Issued Split Stereoscopic

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