The Collaborative International Dictionary
Seven-thirties
Seven-thirties \Sev`en-thir"ties\, n. pl. A name given to three several issues of United States Treasury notes, made during the Civil War, in denominations of $50 and over, bearing interest at the rate of seven and three tenths (thirty hundredths) per cent annually. Within a few years they were all redeemed or funded.
Wiktionary
seven-thirties
n. United States Treasury notes, made during the Civil War, in denominations of $50 and above, bearing interest at the rate of seven and three tenths (thirty hundredths) percent annually. Within a few years they were all redeemed or funded.