The average buying price is $20 a good condion 1928 bill a 1928A bill and a 1928B bill. The most valueable in Good condition is a 1928E bill whitch goes for $200 in circulated or good condition. The value for a Very fine bill is $25 for a plain 1928 bill. For a 1928 C bill is $750 and for a 1928 bill in uncirculated condition is $140. For a 1928 E in uncirculted condition it is $2650.
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?"
Please don't assume that every old bill is a silver certificate. The banner across its top and the green seal indicate it's a Federal Reserve Note, the same type of paper money used today. There's more information at the question "What is the value of a 1928 A US 100 dollar bill?".
Please check your bill again. All 1928-A $100 bills were issued as Federal Reserve Notes. Gold certificates were issued with the 1928 date but no series letter; please see the Related Question for more information.
As of 12/2012, a 1928 $100 US gold certificate retails for roughly $250 to $750 in circulated condition, depending on wear. A nice uncirculated one might go for $1350 or more.
There were no $100 gold certificates dated 1929. The nearest matches would be a National Currency bill with that date, worth $130.-$175., or a gold certificate dated 1928, worth $125.-$180. I have news FOR YOU. I have a $100 gold certificate dated 1929 on my desk as I type this.
Three types of $100 bill were issued with the 1928 series date. Auction prices as of 05/2010 are approximately:Gold Certificate: $250.-$750. in circulated condition; at least $1400 for an uncirculated one.Federal Reserve Note with date 1928: $125.-$180. circulated; $400 or more uncirculated.Federal Reserve Note with date 1928 A: $125.-$180. circulated; $225 or more uncirculated.
Auction values for a 1928 $100 gold certificate in uncirculated condition are in the $1350 range. However I question the "1928A" because my listings do not show a 1928A series, only 1928. You'll need to have the bill authenticated by a dealer or appraiser.
$65 to $100 if circulated, somewhat over $300 if uncirculated.
At least $40. In almost-new condition its value can be over $100.
Please don't assume that every old bill is a silver certificate. As indicated by both its green seal and the banner over Franklin's portrait your bill is a Federal Reserve Note, not a silver certificate. The last $100 silver certificates were dated 1891. See the question "What is the value of a 1934 US 100 dollar bill?" for more information.
Please don't assume that because a bill is old it has to be a silver certificate. As the banner across the top and green seal indicate, your bill is a Federal Reserve Note. See the question "What is the value of a 1934 US 100 dollar bill?" for more information.
The U.S. didn't print any $100 silver certificates with that date. See the related question linked below for more information.