I was checking for this as well and this is the best site I could find so far http://ca.four.ebid.net/perl/auction.cgi?auction=1218890332-32343-0&mo=auction It seems we are talking 1/2 gram of various gold composition (14k to 22k) so maybe 1/100th an ounce of gold which is about 8 dollars just in gold composition.
Mexico did not issue any gold coins during 1865. Maximiliano had just taken over as emperor and he issued centavos and pesos in silver, but nothing in gold. Your coin, instead, is a 'fantasy piece' sold as a novelty in gift shops and tourist destinations. You can see gold coins of Mexico, as well as your fantasy piece, on theWorldwide-Numismatics.comweb site.
These sell on eBay for less than $1 US dollar each. They probably have 22 karat gold plating, but the amount of gold in each piece is negligible. Value of a single coin is less than $1.
check out http://coinquest.com/cgi-bin/cq/coins?main_coin=12728
If it is unscratched, it is worth some 17,000 pesos, or 1,416.17 dollars (May 10, 2010).
What is the value of GOLD 5 MEXICAN PESOS
no such coin
Its is woth .25748. Grams in gold
£500.00
A Mexican gold 2.5 peso's value fluctuates with the market price of gold. This coin has .0608 troy ounces of gold. Multiply that by the market price of gold, currently 1593.90 an ounce, to determine the melt value of this coin. 1593.90x.0608=$96.91.
In order to determine the exact value of a 1865 ten franc gold coin, a number of different things would need to be considered. Some of these things would be, the gold content and condition of the coin.
Nothing just like all things Mexican
The average price per troy ounce of gold in 1865 was $18.93
The bullion value of the coin would be based on the price of gold. The collectors value could be higher.
1945 Est. 140,000 minted Value: Bullion Value +20% contains 0.0482 Troy oz. of gold
$850 to $50,000 depending upon the condition of the coin and the mint mark it bears.
This is a common $1 coin. It is not made of gold. It is made of brass. It is worth a dollar unless it is proof or uncirculated. If it is a proof it will have the mintmark "S".