American Optical Spencer Binocular Compound Microscope 10X / 45X / 100X Oil

Microscope

• Includes 10×, 45×, 100× objectives
• AO Spencer optics
• Oil immersion capability
• Mechanical stage
• Binocular head

• Condition: Used- In good condition

This is a vintage American Optical (AO) Spencer binocular compound microscope, manufactured in the United States and built for professional laboratory and clinical use. It features a heavy-duty metal frame, precision coarse and fine focus controls, a mechanical stage, and a binocular viewing head designed for comfortable extended observation. AO Spencer microscopes are well known for their optical quality, durability, and long service life, making them a trusted choice in hospitals, universities, and research laboratories throughout the mid-20th century.

The microscope is equipped with a high-quality objective set consisting of 10X N.A. 0.25, 45X N.A. 0.66, and 100X N.A. 1.25 oil immersion objectives. This configuration allows for a wide magnification range suitable for routine examination as well as detailed cellular and microbiological analysis. The 100X oil immersion objective provides high resolving power and is commonly used for blood smears, bacteria, and fine histological detail when used with immersion oil, confirming this instrument’s clinical-grade capability.

Overall, this AO Spencer microscope represents a robust, professional-level optical instrument rather than an educational or hobby microscope. Its all-metal construction, Made-in-USA optics, and oil immersion capability make it desirable for collectors, laboratories, educational institutions, or facilities seeking reliable surplus equipment. Condition appears consistent with careful institutional use, and the microscope retains its original industrial design and precision engineering typical of American Optical Spencer instruments.