Mexico revalued its currency in 1992-93 due to hyperinflation. "Nuevo pesos" (new pesos) were introduced at the rate of 1 nuevo peso = 1000 old pesos.
That means a coin dated before 1992 is worth only 1/1000 as many current pesos; i.e. an old 1000-peso coin is only 1 new peso. At current (2009) exchange rates 1 new peso is worth less than a U.S. dime.
about 75 cents
When the switch was made to the Euro, 1000 lira (not dollars - it translates as pounds) was worth roughly 50 cents U.S.
The U.S. made no dollar coins in 1990.
a lot like 1,000 dollar
No, since re-valuation in 1992, the largest denomination Mexican Peso note is the 1,000 Peso. The 50,000 Peso note was last issued in Dec 1990 with an exchange value of 1:1000 with the new Peso (about $4). Mint condition 1990 notes are worth $45 to a collector. Used condition ones are worth about $6.
twenty dollars
In mint uncirculated condition, a 1990 $20 note is worth $30. In normal condition, it is worth exactly $20.
about 80+ bux This is not correct. The MXN (Mexican pesos) printed after 1993 are currently worth about 8 cents to the American dollar, so a 1000 peso note would be worth about 80 dollars. A 1988 1000 peso note, the MXP, is worth 1000 times LESS than that. The MXP is obsolete, worthless to anyone but a collector of older bills. Sorry, but I did the research for myself, to save time. I have 38k in pesos, but they are all notes/coins printed before 1990, so the value of $3000 USD I thought I had went down to about $38 USD. Don't be disappointed when you get to the bank, $38 will fill your gas tank, at least.
If this is asking the value of a 1990 half dollar, it's worth 50 cents.
Ah, 20 dollars.
10cents
it is worth much more