Exertus Ergo Sum

The Cartesian Kiosk

This device was found in the basement of a modest home in West Orange, New Jersey some time after the turn of the century. It's notable because it seems to be self-referencing. The Latin motto, exertus ergo sum, is printed on the underside of the copper enclosure. This phrase has given the device its present day name, The Cartesian Kiosk. Its film program points to Mr. Edison's invention of the lightbulb but the humor may well place its origin with Tesla.