United States Commemorative Postage Stamp Honoring American Inventor Charles Steinmetz,
Steinmetz patented a "system of distribution by alternating current" and possessed a profound understanding of electromagnetic theory. He developed a theory of magnetic hysteresis and held many patents.
Issued September 21, 1983 in Washington, DC,
First Day of Issue Cover, FDC, House of Farnam Engraving Cachet, Unaddressed,
Cover in Removable Transparent Poly Sleeve and Mailed With Protection,
Made in the USA.
Genuine First Day of Stamp Issued Cover Cancelled on the First Day of Issue Date by the U.S. Postal Service,