2 Concave Mirrors for Experiments with Radiant Heat, c. 1910

Spark Inductor and Vacuum Scale

1 Kenotron and 2 X-Ray Tubes, c. 1925

Wheatstone Bridge, c. 1880

Winter's Pattern Electrostatic Machine, c. 1860

Winter-Type Electrical Machine, c. 1870

Columbus Celestial Globus, c. 1955

Islamic Astrolabe, Early 20th Century

Accessories for Demonstration Goniometer after Weinhold, c. 1910

Gold and Gemstone Scale, c. 1900

Lot of Medicine and Apothecary Utensils

Electrocardiograph by Charles Boulitte, 1928

Perin Solidification Gauge, c. 1890