# 2055-58 (1983) Inventors - Mr. Zip, BK/4, LR, MNH

# 2055-58 (1983) Inventors - Mr. Zip, BK/4, LR, MNH

Regular price $1.25 Sale

1983
AMERICAN INVENTORS
 American ingenuity.
  Charles Steinmetz, fostered the development of alternating current that made possible the expansion of the electric power industry;
  Edwin Armstrong, electrical engineer and inventor, who developed FM radio;
  Nikola Tesla, best known for his contributions to the design of the modern alternating current electricity supply system;
  Philo Farnsworth, many crucial contributions to the early development of television - the first fully functional and complete all-electronic television system.
Water Activated Gum
Scott 2055-58
Perforated 11
Lower Right Stamp Mr. Zip Block of 4
Mint Never Hinged