The Union Paw was originally created to become the sole, common currency for all Non-Human Union members.
However, due to internal opposition by some NHU members and/or their people, the adopting of the Union Paw ceased to be a requisite for joining the NHU. Its adoption is still encoraged among NHU members, specially those who reside in the Greenfields region, and those who do so gain numerous economic benefits and a preferential treatment from the NHU Central Bank. The currency is issued both in coins and paper, and its value is currently set to float around 2.5 Union Paws per World Dollar. If this parity is threathened, however, the NHU Central Bank is poised to intervene in order to keep the currency competitive and protect NHU markets.
The different bills of the currency depict numerous monuments and national animals of NHU member nations.