Answer: Finger Exerciser. The Ochydactyl is an apparatus used by musicians to increase their fingers' nimbleness, independent action, and strength. It was patented by French inventor Georges Rétif in 1929. Learn more ››

Answer: Medical Shock Clock. Made in 1910, Darche Medical Clock was designed to apply electric shocks to the body for medical treatment. These were only small shocks designed for electrical stimulation. Learn more ››

Answer: Strongman Tester. The 19th century Push-Pull type Tiemann Dynamometer was used for many years in strongman championships to measure muscle strength. Learn more ››

Answer: Bloodletting Device. The Scarificator, a series of 10-12 blades, was also in vogue during the 18th Century, This device was cocked and the trigger released spring-driven rotary blades which caused many shallow cuts. The Scarificator seems more merciful than the other blood-letting instruments. Learn more ››