The last silver certificates were printed with the date 1957, and no US $1 bills are dated 1990. Please check again and post a new, separate question.
Fair market value as of 12/2008 is $9.
The approximate value of your coin according to Numismatic News Coin Market Monthly Price Guide for March 2007: 1990 Silver Eagle = $18.00
50,000 or so depends on the condition if in excelent it can be wirth 75,000.
This is a bullion coin sold for its silver value, currently about $17/oz. The "$1" denomination is artificial.
The U.S. made no dollar coins in 1990.
Retail is about $30.00 maybe more if it's proof deep cameo
Do you mean the circulating dollar coin minted from 1971 to 1978, or the commemorative coin issued in 1990? The circulating coins are worth only a dollar each. The commemoratives are worth about $15.
If you mean a 1990 Silver Eagle only Proof and bullion coins were struck in that year. From 1986 to 1992, proof Silver Eagle coins were minted at San Francisco and these coins bear the "S" mintmark and have a current retail value of $20.00. Bullion Silver Eagle coins dated 1990 were also struck at San Francisco but do not have mintmarks, the value of these coins depends on the spot price of silver at time of sale. As of today it's about $17.50.
If this is asking the value of a 1990 half dollar, it's worth 50 cents.
Washington, DC, at the Bureau of Engraving and Printing. The secondary facility in Fort Worth, TX didn't go into service until 1990.
Current value of a 1990 Eisenhower Centennial dollar is $23.00-$25.00.
No US $1 bills are dated 1990.