As an expert in numismatics, the study of currency, I can confirm that there is a $1,000 bill, but its circulation and legality can vary depending on the country and context.
In the United States, the $1,000 bill is a high-denomination bill that was last issued in 1945 and is no longer in production. However, it is still legal tender and can be used for transactions, though it is extremely rare to encounter one in circulation today. The most commonly circulated $1,000 bill features a portrait of President Grover Cleveland.
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