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Digital assets and currencies

Understand assets, networks and trading mechanics with sources you can check.

Fiat currencies

Black Eagle Silver Certificate

The Black Eagle is a type of one-dollar silver certificate produced in 1899 in the United States. The note measured 7.38 in (187 mm) by 3.18 in (81 mm); it was of the large-size variety of bank-notes issued by the United States. The note featured a Bald eagle with its wings spread. The note was also referred to as "Eagle of the Capitol", because the United States Capitol is visible behin

Fiat currencies

Funnyback

A Funnyback is a type of one-dollar silver certificate produced in 1928 and 1934 in the United States. People referred to the note as a "Funnyback" based on the significantly lighter green ink and unusual font printed on the reverse.

Banking

National Bank Note

National Bank Notes were United States currency banknotes issued by national banks chartered by the United States Government. The notes were usually backed by United States bonds the bank deposited with the United States Treasury. In addition, banks were required to maintain a redemption fund amounting to five percent of any outstanding note balance, in gold or "lawful money." The notes

Trading basics

Pattern coin

A pattern coin is a coin which has not been approved for release but is produced to evaluate a proposed coin design. They are often off-metal strike (using metals of lower value to test out the dies), to proof standard or piedforts. Many coin collectors collect and study pattern coins because of their historical importance. Many of the world's most valuable coins are pattern coins; nearl

Fiat currencies

Treasury Note (1890–1891)

The Treasury Note (also known as a Coin Note) was a type of representative money issued by the United States government from 1890 until 1893 under authority of the Sherman Silver Purchase Act in denominations of $1, $2, $5, $10, $20, $50, $100 and $1,000. It was issued in two series: an 1890 series with $1, $2, $5, $10, $20, $100 and $1,000 denominations, and an 1891 series that added t