Bidspirit auction | 3 cases containing medical equipment,

3 cases containing medical equipment, mid- - 3 cases containing medical equipment, mid-20th century. 1 x optometrist’s refraction set for measuring refractive errors. Complete set. 1 x so-called “Hartnack polarimeter” for measuring the optical activity of liquids. Complete? With instructions. 1 x otoscope, for examining the interior of the ear. Includes a glass ampoule in a metal container. Cases partially slightly dented, up to approx. 30 x 21 x 5 cm