Silver certificates were discontinued in 1963. Check your bill, it should say Federal Reserve Note just like all other current bills.
As such, it's only worth face value.
In worn condition, about $200. In better shape, $400-500.
As of 9/11 these bills are worth $10-$20 in circulated condition. In uncirculated condition they are worth $200 or more.
$200
1928-series $100 bills weren't issued as silver certificates, only gold certificates and Federal Reserve Notes. Please look at the bill's front to determine which you have; then check one of the following: "What is the value of a 1928 US 100 dollar Federal Reserve Note?" "What is the value of a 1928 US 100 dollar gold certificate?"
200
There's no such thing.
A 1 pound Silver Eagle is worth about $200.
The value of a misprint folded corner of a 1935 silver certificate may vary depending on the extent of the misprint, collector demand, and rarity. In general, an error note like this may be valued by collectors who appreciate unusual characteristics, but it's best to consult with a currency appraiser or specialist for an accurate assessment.
200 Thousand Or More
The fourth band indicates the tolerance. Silver is ±10%. Thus, (200 + 0.1*200) = 220 ohms. The minimum, then is (200 - 0.1*200) = 180 ohms. See link.
As of 01/2011, prices are in the range of $200 to $700 for one in circulated condition, and over $800 uncirculated. 1886 US $1 silver certificates are somewhat rare, so you should have it inspected by an expert to make sure it's genuine.
$50-$200 US depending on condition.