Aargau 1831 2-1/2 rappen
This type is listed for 1831 only along with a five rappen. After being temporarily unified under Napoleon's Helvetic Republic, the cantons went their separate ways after the Congress of Vienna and issued a torrent of low value coins. Not until 1850 would a unified confederation mint her own coins and terminate the local issues.
Recorded mintage: unknown.
Catalog reference: KM 25.
- Michael, Thomas, and Tracy L. Schmidt, Standard Catalog of World Coins, 1801-1900, 9th ed., Iola, WI: Krause Publications, 2019.