Republic credit ingot

During the Clone Wars, the currency of the planet Mandalore consisted of small, flat bars of gold and silver-colored metal. Each bar was between two and three inches in length and had symbols stamped onto its surface, including the symbol for the Galactic Credit Standard. This form of currency is also valuable in other parts of the galaxy. Anakin Skywalker used it to get onto a ship searching for R2-D2, and Ahsoka Tano threw a bunch into a bar to escape a brawl.

Behind the scenes
Although Mandalore was a member of the Galactic Republic, its currency does not resemble the standard credit chip. The exact reason for the difference is not known.