Other than coin dealers and coin collectors, many jewelers buy gold and silver.
A 1928 US Peace Silver Dollar is worth approximately $20 to $130 if it is a coin that has been circulated. Uncirculated coins can command upwards of $600.
The Denver mint did not strike any silver dollars in 1928. You may have a 1928-S where the S is indistinct. This coin is worth $20 to $30 depending on condition.
These usually sell in internet auctions for about $1500.
One can purchase a 20 dollar gold coin mainly from collectors on the internet. These collectors usually sell on eBay or Amazon. As well as this, one may visit CMI Gold & Silver Inc to buy 20 dollar gold coins.
The British do not have a Twenty Dollar coin.
If you mean a 1928 Peace dollar with No mint mark It's the key date to the series the value in VF-20 is $475.00. I suggest you take it to a coin dealer, because I have seen many 1928 S mint coins with the mint mark removed.
More information is needed. Genuine US $20 gold pieces were struck for circulation from 1849 to 1932 at several mints, and other countries issue $20 coins either as bullion pieces or for collectors. Please post a new and more specific question with the coin's country of origin and date. what is the value of United States twenty dollar gold coin and where to sell? what is the value now of United states twenty dollar gold coin and where to sell
If you mean a 1928 Peace dollar with No mint mark It's the key date to the series the value in VF-20 is $475.00. I suggest you take it to a coin dealer, because I have seen many 1928 S mint coins with the mint mark removed.
There is no such thing as a British 20 dollar coin. If you have a 20 dollar coin it must come from some other country (or even British colony)
Australia does not have a Twenty Dollar coin as a part of its normal currency. There have been 20 Dollar coins minted occasionally for bullion sets or special commemorative coin sets.
This coin worth $20,000.
The US issued both $20 coins and $20 bills in 1928. Please see the appropriate Related Question.