Sawbuck and the Roman numeral X (10), which formerly appeared on $10 bills. A "double sawbuck" is a twenty dollar bill. Sawbuck A sawbuck is a device for holding wood so that it may be cut into pieces. Easily made in the field from rough material, it consists of an "X" form at each end which are joined by cross bars below the intersections of the X's. The stock to be cut is placed in the V's formed above the intersections of the X's. A sawbuck is very simple to build. The five "V" sawbuck was designed with 10 vertical 2×4s,
Replacement banknote Replacement banknote A replacement banknote, commonly referred to as a star note, is a banknote that is printed to replace a faulty one and is used as a control mechanism for governments or monetary authorities to know the exact number of banknotes being printed. Also, since no two serial numbers can be the same , the bill is simply reprinted with a symbol in the serial number, identifying it as a replacement for an error note. Replacement bills have different symbols to mark the error around the world, although the most popular examples are "star notes". As quality control finds