$A Dipping Refractometer by Bausch and Lomb, Mid-20th First Image$

A Dipping Refractometer by Bausch and Lomb, Mid-20th

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$A Dipping Refractometer by Bausch and Lomb, Mid-20th (1 of 9)$

A Dipping Refractometer by Bausch and Lomb, Mid-20th A Dipping Refractometer by Bausch and Lomb, Mid-20th Century. Reading 0.00003-0.00004 refractive index units. Having four auxiliary prisms (1.32-1.36, 1.36-1.40, 1.39-1.43, 1.43-1.47), beaker and two

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Vintage Brass Microscope DESCRIPTION: A vintage brass microscope possibly made by Bausch & Lomb Optical Co. Comes with additional lense and original box. CIRCA: Early-Mid 20th Ct. ORIGIN: USA DIMENSIONS: H: 10" L: 3 1/2" COND

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