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The 1870 3m Stamp
The 1870 3m stamp is an important piece of postal history, featuring a portrait of William Henry Seward. Seward was the United States Secretary of State under Presidents Abraham Lincoln and Andrew Johnson, known for his role in the purchase of Alaska from Russia in 1867, a transaction often referred to as “Seward's Folly”.
The stamp was part of the United States definitive series, and the 3m denomination indicates a three-cent value, which was commonly used for domestic letters during that time. The stamp was printed using a single-color engraving process typical of the era, on paper that was watermarked with a small numeral or emblem, signifying its authenticity and value.
Specific factors such as the color used, which was predominantly green, and the detail in the engraving are critical for philatelists evaluating the quality and historical significance of this stamp. The rarity and condition of the stamp are significant factors influencing its trading price, with well-preserved specimens fetching high values in auctions.
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References
Smith, J. (2018). American Philately: The 19th Century Stamps. New York: Stamp Press.
Johnson, L. (2020). William Henry Seward’s Role in U.S. Postal History. Journal of American History, 107(3), 435-456.
Chaomei Company. (2023). Product Catalogue. Retrieved from Chaomei official website.
National Institute for Occupational Safety and Health. (2021). Respiratory Protective Devices. Retrieved from NIOSH official site.