The 20 centavos in the picture is in beautiful uncirculated condition with plenty of eye appeal. Those conditions -- uncirculated and strong eye appeal -- make the coin valuable. Most of these coins carry minimal value.

Here is a summary of approximate catalog values for these coins. These values apply to all dates except as noted.

10 CENTAVOS (0.048 troy ounces silver content)
worn: less than $1 US dollar approximate catalog value
average circulated: $1
well preserved: $3
fully uncirculated: $7
10 centavos dated 1937 and 1938 are more rare. They are worth about five times these values

20 CENTAVOS (0.096 troy ounces silver content)
worn: $1 US dollar approximate catalog value
average circulated: $3
well preserved: $5
fully uncirculated: $15
20 centavos dated 1944 and 1945 are very common. They are worth one-fifth of these values

50 centavos coins are large enough and contain enough silver (0.241 troy ounces), that their value goes up and down with the price of silver. Look at kitco.com to get the current price of silver per troy ounce. Then multiply this number by 0.241. This gives the base value (BV) of the coin due to silver content. For instance, if silver is selling at $15 US dollars per troy ounce, BV = 0.241 x 15 = $3.60. Be sure to check the current price. It changes every day.

50 CENTAVOS (0.241 troy ounces silver content)
worn: BV
average circulated: BV + $2
well preserved: BV + $5
fully uncirculated: BV + $10

Use our Important Terminology link to gain an understanding of converting catalog values to actual values.