Greenback
Greenback is a Demand Note or United States Note.
Overview
Catalogue entries for banknotes state issue, serial, grade and any certification. VALÉORINE records this subject so that lots referring to it can be described consistently.
In detail
paper currency issued by the United States during the American Civil War
Sources
Each source is named with the standing the house places on it, so the evidence can be weighed rather than taken on trust.
reference work · Reputable secondary · Wikipedia
“Greenback (1860s money)”, English Wikipedia, consulted as further reading
Consult the sourcereference work · Reputable secondary · Wikidata
Wikidata, structured authority record Q5603663: Greenback
Consult the source