Antique Brass Praxis Microscope by W. Watson & Sons c1919, Cased & Collectable

Little Antique Vintage Brass Microscope Parts Spare Or Repair See Video

Watson 2/3rds inch 10x magnification with period brass canister Watson 1/6th inch 40x magnification with period brass canister Carl Zeiss Jena 1/12th inch oil immersion 100x magnification period with brass canister.