Blue Box c. 1972 designed by Steve Wozniak and marketed by Steve Jobs and Wozniak. Black plastic box measuring 4 x 2 7/8 x 1 1/2 inches, with thin plastic membrane keys mounted in cover plate, housing printed circuit board, loose wiring and 9-volt battery. Sold at Bonhams on December 6, 2017 for $125,000.
" On one occasion Wozniak dialed Vatican City and identified himself as Henry Kissinger (imitating Kissinger's German accent) and asked to speak to the Pope (who was sleeping at the time).[13][12] Wozniak said in 1986:[14]
I called only to explore the phone company as a system, to learn the codes and tricks. I'd talk to the London operator, and convince her I was a New York operator. When I called my parents and my friends, I paid. After six months I quit—I'd done everything that I could.
I was so pure. Now I realize others were not as pure, they were just trying to make money. But then I thought we were all pure.
Jobs later told his biographer that if it hadn't been for Wozniak's blue boxes, "there wouldn't have been an Apple."[15] (Wikipedia)