figure 1. An intriguing and mysterious plaque in 2018. (Photo used by permission of Robert Lobenstein.) focus of excelsior, but the provision of power was not ignored as lighting pro- duced insufficient return to amortize the capital investment required. daft installed a combined power and light system in Boston in 1884, an- other in rhode island, electric railways in Baltimore and upstate new York, and the first electric elevator in Man- hattan. a demonstration of his motors at the 1884 international electrical exposition in Philadelphia was used to print an entire edition of the prestigious trade journal The Electrical World. ex- celsior's prime steam-power customers were printing and publishing houses, thus excelsior had a market for con- version to electric power. daft products and excelsior's system made a per- fect combination. Save Energy. Rent Test Equipment. Advanced Test Equipment Rentals makes renting easy so you can focus your energy elsewhere. Rent: * Regenerative Grid Simulators * AC / DC Loads * Programmable Power Supplies * Cable Fault Locators * Relay Testers * and more... Advanced Test Equipment Rentals Start Saving Today! www.atecorp.com 888-404-ATEC (2832) The Knowledge. The Equipment. The Solution. 110 ieee power & energy magazine july/august 2018http://www.atecorp.com