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The AO American Optical Corp Model 815 Vintage Rotary Laboratory Microtome is a precision instrument designed for medical laboratory use. This microtome, manufactured by American Optical, is a rotary unit capable of accurately slicing and handling biological specimens for detailed analysis. With a focus on precision and reliability, this vintage model is a testament to the quality craftsmanship of American Optical Corp in the field of laboratory equipment.

The American Optical 11625 Minus Cylinder Phoroptor Refracting Instrument is a specialized device used in ophthalmology for precise measurements of refractive errors in the eye. This phoropter, manufactured by American Optical, is designed to help healthcare professionals accurately determine the best corrective lenses for patients with minus cylinder prescriptions. With its advanced technology and ergonomic design, this instrument is a valuable tool for providing high-quality care in the field of ophthalmology.

All objectives are compatible with this 160 mm tube length microscope. They are not infinity objectives (infinity objectives are not compatible with the AO Series 4 microscope). Nothing was held back in the manufacture of the AO Series 4 (the AO Series 2 is similar, but without the built-in illumination system in the base).

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