Frankingold
$300
There is no 29 Franc gold coin. If you mean 20 francs it is worth about $250.
Assuming you are asking about the 20 Franc gold coin at today's gold prices the metal value is about $550US. Add about 10% and you can buy one online.
this coin has no supplementary numismatic worth. So, check the gold prices... Weight of this coin: 6,45 gramm, with only 90% of pure gold!
1864 avery to good condition
Switzerland ("Confoederatio Helvetica" is Latin for the "Swiss Confederation") issued no 20 Franc coins, gold or otherwise, in 1970. It did issue a 20 Rappen coin (there are 100 Rappen to the Franc), which is a silver-colored coin 21 mm in diameter (about the size of a US nickel). Numismatically, it is worth perhaps a US dollar in Uncirculated condition, and no more than face value (about 19 US cents as of December 2009) in circulated condition.
The "Angelot" or "Ange". When it was introduced into England, it became known as the "Noble" and then the "Angel-Noble".
assuming you are referring to the $20 coin, it was called a Saint Gaudens
A 1949 Belgium 5-franc coin, sometimes called a Belgie, is depicted with a woman on one side of the coin and wheat on the reverse. It can be worth about $20 US dollars.
This is a 102-year old coin from Switzerland. Value depends on denomination and condition. Possible denominations are 5, 10 or 20 Rappen (back of coin has just a number), or 1/2, 1, 2, 5 or 20 Francs (all of which are silver, except for the 20 Franc which is gold). No 10 Franc coins were minted in 1907.
The year on the Swiss Franc coin says nothing about the value but about the date when the coin was fabricated. Check out the number on the coin to see how much it's worth. You have the smallest piece (5 Rappen) going up to pieces of 10, 20 and 50 Rappen (100 Rappen = 1 Franc) , 1, 2 and 5 Swiss Franc coins.
It wort about three dollars