Thrip

The thrip is an American three-cent piece, employed as early as the late 1800s. The term was possibly first used to describe the silver three-cent pieces, for when the nickel three-cent pieces arrived in 1865, these latter were called nickels.
Found on http://www.probertencyclopaedia.com/browse/JT.HTM

Thrip

Thrip was old slang for a threepenny piece.
Found on http://www.probertencyclopaedia.com/browse/ZT.HTM
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