A 19th-Century nickel-plated brass compound monocular microscope,
signed on the body-tube Gallais Dupont a Paris, with rack and pinion focusing, fine adjustment, triple nose-piece with three objectives, sub-stage condenser and plano-concave mirror, with compass joint, on twin pillar supports and Y-shaped stand -- 12¼in. (31cm.) high
A 19th-Century nickel-plated brass compound monocular microscope,
signed on the body-tube Gallais Dupont a Paris, with rack and pinion focusing, fine adjustment, triple nose-piece with three objectives, sub-stage condenser and plano-concave mirror, with compass joint, on twin pillar supports and Y-shaped stand -- 12¼in. (31cm.) high
