A pen manufacturer, Paul C. Fisher, manufactured first space pen in 1966 but it was in October 1968 when it got chance to go into orbit. He used $1 mn of his money and created the AG-7 an anti-gravity pen. He then sent it to NASA, who loved his invention. Even the Russians started using it after some time. Now the 50th-anniversary edition of the pen has entered the market made of ‘gold titanium nitride plated brass’.