90%
If I understand the question. The answer is the 1982 George Washington 250th Anniversary of Birth half dollar.
There is no Washington half dollar.CorrectionAs of 02/2009 Numismedia quotes a retail price of about $5.00 for a 1982 Washington commemorative half dollar (250th anniversary of his birth) This figure is totally wrong.The silver content alone in the 1982 George Washington Commemorative Half Dollar is A little over 10.00..collectors value adds a few dollars on top of this.
For circulation, there was the cent, nickel, dime, quarter, and half dollar. There was also a commemorative George Washington half dollar, made of silver, to celebrate the 250th anniversary of his birth. It was only for collecting.
$1, £0.62, €0.76.
The coin was made for the 250th anniversary (1982) of Washington's birth. It was the first commemorative half dollar issued since 1954 and the fist 90% silver coin made by the Mint since 1964. Uncirculated and Proof coins were struck, and both have the same value of about $14.00.
Please look at the coin again, it's a half dollar not a $20.00 gold coin. The retail values for 1982 G.W. anniversary coins are $6.00.
It's a commemorative from the 250th anniversary of his birth. In its original package it would be worth about $7. Out of its package it would be worth at most half that amount.
If you mean the 1926 commemorative half dollar,It's Presidents Coolidge & Washington.
The only 90% silver half dollar dated 1982 was the George Washington 250th Anniversary of Birth commemorative coin. It was the first 90% silver coin produced since 1964.
The 1982-S George Washington 250th Anniversary of Birth commemorative Half Dollar is worth about $7.75 in Proof condition, according to the December 7, 2010, edition of Numismatic News.
Current value is about $7
The coin was issued to mark the 250th anniversary of Washington's birth. It was struck as Proof (1982-S) and Uncirculated (1982-D), both have the same value of $12.00 regardless of mint mark.