| http://www.w3.org/ns/prov#value | - : A History , 1983 ?? Leiss (C.) Die Optischen Instrumente der Firma R.Fuess, facsimile reprint, Redondo Beach, Ca., 1988 ?? Faber (O.) Ferrari's Dioptric Instruments, 1919 , illustrations, all but the first original cloth, the third with dust-jacket, the last rubbed with worn spine ; and c.35 others on telescopes, microscopes, cameras and other optical instruments including some nineteenth centur
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