In honor of the great inventor Nikola Tesla, we have issued a rare collection of 5555. He was a world-renowned inventor, physicist, mechanical engineer and electrical engineer. He made outstanding contributions to electricity and magnetism. He was a supreme genius and a great man forgotten by the world, the alternator was invented by him his patent and theoretical work based on modern alternating current power systems, including multiphase power distribution systems and alternating current generators, which helped him bring about the second industrial revolution.
