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COMPOUND UNIVERSAL MICROSCOPE

MAKER: R & J Beck

MODEL: 'INTERNATIONAL' or 'LARGE BEST' or 'GRAND' MICROSCOPE or 'IMPROVED MICROSCOPE WITH SWINGING SUBSTAGE'

c. 4th QTR 19TH C.

SIGNED: 'R & J BECK, LONDON & PHILADELPHIA '

Beck Universal Substage Condenser

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