There was no Mexican coin denominated "500" anything in issued 1967. There was a copper-nickel (not silver) 500 peso coin issued in 1987 - it is worth less than a US dollar in circulated condition, and a bit mor than US$2.00 in Uncirculated condition.
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A 2000 Mexican 10 Pesos retails for $6.75US if like new as a collectible. In exchange it would be worth $0.79US if you could find a place that changes foreign coins. I hope that helps.
The 100 leones coin from Sierra Leone dated 1996 is worth a US dollar or two in Uncirculated condition. I don't see any 500 leones coin ever having been produced - perhaps you have a token or fantasy piece.
This is not a US coin. Please examine your coin and then post a new question giving more information about it.
In good condition as much as 500 or $600 that
The 1925 two centavos coin from Mexico (KM#419) had a mintage of 3,650,000. It is worth about US$2.50 in Fine condition; about US$3.50 in Very Fine; about US$7.50 in Extremely Fine; and about US$38.00 in Uncirculated condition.
how much was 500 pounds worth in us currancy
A modern 100 Yen coin is worth about $1.10
How much a 1901 Magyar 2 cent coin is worth depends on the condition of the coin. In average circulated condition, such a coin is worth 1 US dollar. In fully uncirculated condition, this coin is worth 5 US dollars.
In July 2005: 1 US $ = 3,0223 lei For a numismatic collection: 1 leu 2005 = 1 US $