Uruguay's monetary reform of the late 1960s was driven by catastrophic inflation that had eroded the peso to near-worthlessness — by 1969 the government was already planning the new peso conversion that would eventually lop zeros off the currency in 1975. This copper-nickel pattern was part of that preparatory work, one of several denominations tested before the reform framework was finalized. Patterns from this process rarely left official hands, which explains their extreme scarcity in any collector market today.
Uruguay's monetary reform of the late 1960s was driven by catastrophic inflation that had eroded the peso to near-worthlessness — by 1969 the government was already planning the new peso conversion that would eventually lop zeros off the currency in 1975. This copper-nickel pattern was part of that preparatory work, one of several denominations tested before the reform framework was finalized. Patterns from this process rarely left official hands, which explains their extreme scarcity in any collector market today.