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Welch Allyn, 3.5v Standard Ophthalmascope, Model 11710 (head only)

Uses halogen light for true tissue color and consistent, long-lasting illumination. 

Versatile and reliable at an economical price. 

6 apertures for generalist use: micro, small, and large spot sizes, fixation target, slit aperture, and red-free filter. 28 focusing lenses with a range of -25 to +40 diopters Rubber brow rest prevents scratching of eyeglasses