Trinidad and Tobago, off the coast of Venezuela in South America, became independent in 1962 and started producing coinage in 1966. The large $10 dollar coins appeared in 1972 and continued until 1980.
COINS DATED 1972: produced in silver
COINS DATED AFTER 1972: produced in both silver and copper-nickel
The first step in evaluating these coins is to determine the metallic composition. If you have been collecting for a while, you instinctively know the difference between silver and copper-nickel. If you are new, take your coin to a jeweler to be sure.
Silver coins are made of 1.041 troy ounces of silver. Multiply the current silver price by 1.041 to find the base value (BV) of the coin. For instance, today silver is trading at $18.50 US dollars per troy ounce, so BV is 1.041 x 18.50 = $19.22. Look up the current value of silver at kitco.com, it changes every day.
Silver coins are worth base value plus a collector premium. Copper-nickel coins have zero base value. Here are approximate catalog values for the two types:
average circulated: BV
well preserved: BV
fully uncirculated: BV + $18 US dollars approximate catalog value
worn: face value ($10 in Trinidad Tobago)
average circulated: face value
well preserved: $12
fully uncirculated: $35
The catalogs indicate that some dates of these coins were held artificially low (a few hundred coins) to drive collector prices up. CoinQuest abhors this practice and will not report values for such items. Please try to find values at other sites.