Coin and currency collectors in the US are willing to pay up to $150,000 in search of rare $1 bills with a particular printing error from the US Bureau of Engraving and Printing.
Two batches of $1 bills were printed, one in 2014 and another in 2016, that feature this particular error, and the bills went into circulation before the mistake was found.
According to a video by Silverpicker, the error went unnoticed until a banknote collector found an anomaly in the Bureau of Engraving and Printing’s public documents.