CENTRAL SCIENTIFIC CO., CHICAGO, U. S. A. 19 … No. 7505. Back View. (See description, page 18.) 7505. Dissecting Microscope, with 9X Doublet $ 2.50 7505A. Dissecting Microscope, with 12 X Doublet 2 . 50 7505B. Dissecting Miscroscope, with 9X Triple Aplanat 5.25 7505C. Dissecting Microscope, with 12X Triple Aplanat. 5 . 25 7507. DEMONSTRATION…
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