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Tamron also made binoculars sold under other labels. There was only one firm with which we had a written contract, Kowa, and it was at their insistence. They made very good binoculars and riflescopes. Mr. A. Narimatsu was their engineer, who designed a 6 x 20 from the Sard design, with a Leman prism, made by Kowa. ................
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