The coin is still in circulation today and has face value only
In 1977, the French used the franc. A 1977 50 francs coin is worth just under 15 US dollars. The silver content of the coin is worth 11 US dollars alone.
If the coin is actually made from gold, it will be worth whatever the gold content is worth. If it is a coin of gold appearance, it will maybe be worth whatever you paid for it.
it is worth one dollar.
Face value.
If it is a "souvenir" coin, it is probably worth less than what you paid for it.
Which country and what coin?
yes the Lexington concord golden coin is worth a lot today, especially with the rise of gold and the gold prices.
The value of a 1977 cinco pesos coin depends on its condition and rarity. As of 2021, a circulated 1977 cinco pesos coin may be worth around $0.25 to $1 USD, while a coin in uncirculated condition could be worth slightly more to collectors. It is advisable to check with a coin collector or appraiser for a more accurate valuation.
From what country? If it's from Canada, it's an ordinary circulation coin worth, well, $2.00
The original price in 1977 was $155.00 cad. There is 1.46 agw of silver in the coin. At 35 an ounce the coin is melting at around 51 dollars cad.
What is a silver dollar from 1702 worth today