By face value, practically nothing. Fifty Mexican cents (which is the translation of "cincuenta centavos") is 0.5 Mexican pesos, but the peso has since been redefined since 1983; what used to be called 1,000 pesos is now called 1 peso. Therefore, the coin's face value is 0.0005 Mexican pesos, which is less than a hundredth of a United States cent. I wouldn't expect an ordinary 1983 coin to have any special value to collectors, but I'm no numismatist.
About $6 or so in scrap silver if worn, about $10 if in better shape. It is a common date and is 72% pure silver.
2
2dollars
Unless it is a "proof" coin (actual silver), it is worth one dollar.
The value of a 1981 twenty dollar cultura Maya coin can vary depending on its condition, rarity, and demand among collectors. It's recommended to consult with a coin dealer or appraiser to get an accurate valuation.
Your 1981 Mexican 20 peso coin is made of cupro-nickel and worth less than a dollar if circulated (and maybe $2 or $3 if uncirculated).
Unless it is a "proof" coin (actual silver), it is worth one dollar.
Not enough information. Please post a new question with the coin's date and denomination. Note that the "$" sign on a Mexican coin represents Mexican pesos, not U.S. dollars.
Eisenhower was on the DOLLAR coin in the 1970s. KENNEDY has been on the half dollar since 1964. A 1985 Kennedy half is still worth 50 cents.
as of February 18, 2012, a 1000 peso Mexican bill from 1985 is worth about 75 cents.
It is a coin worth one dollar.
the worth value of the liberty dollar coin is worth 50cents.
It contains no precious metals -- worth about $2.00