Crouzat dos is the name of Cruzado, the old Brazilian currency.
Most countries in South America have experienced serious inflation. When issuing large denomination currency is out of control, they often issue small denomination new currency to offset the price and recover large denomination old currency.
This is the case in Cruzado. The face value of 1000MIL is equal to the present waste paper.
At present, the currency used in Brazil is called the real. When it was first issued, the exchange rate with the US dollar was 2: 1. Later, it was inflated and now it has depreciated.
Although the landlord's money has withdrawn from circulation, it still has appreciation value. After all, the manufacturing technology and anti-counterfeiting measures of these old currencies are commendable.
The landlord can look at it with a magnifying glass. There are micro-printed words, reverse printed patterns, colored fiber lines covered with paper that can be picked out with a needle, and of course, traditional watermarks and security lines.
Therefore, whether money is valuable or not, it is a work of art worth collecting. Please take care of it.