Tesla's air-friction speedometer manufactured by the Waltham Company Image added March 1, 2015 - 12:18 AM
An 18-inch Tesla turbine with the cover removed to display the rotor Image added March 1, 2015 - 12:18 AM
Tesla's magnifier producing a brilliant display in his lab on Houston St. in New York City Image added March 1, 2015 - 12:18 AM
Tesla's magnifying transformer in action in his lab on Houston St. Image added March 1, 2015 - 12:18 AM
Experimental tuning table used to receive wireless power in Tesla's 5th Ave. New York lab Image added March 1, 2015 - 12:18 AM