The postage stamps issued in the 1870s and 1880s are collectively known as the "Bank Notes" because they were produced by the National Bank Note Company, the Continental Bank Note Company, then the American Bank Note Company.
Марки 1870-х і 1880-х років узагальнено називаються «банкнотами», тому що їх друкували компанії з випуску банкнот Continental Bank Note Company, National Bank Note Company, а потім і American Bank Note Company.