This is a continuously focusable ARRI spotlight, ARRI being the trade name of Arnold & Richter, a company established in Munich in 1917. The height-adjustable tripod can be dated back to the 1950s. The spot is equipped with a Fresnel lens and fitted with an E27 socket for standard light bulbs.
Dimensions:height-adjustable from 195cm (76.8") to 275cm (108.3")
diameter (spot corpus): 33cm (13'')
depth (spot corpus): 40cm (15.7'')