It helps if you also list the two signatures on the bill. In very good condition about $240. A blue seal with the signatures Napier...Thompson, in uncirculated condition lists for $2000.
The worth of a silver certificate with serial # 60292929 is about $3 to $5 if it is in uncirculated condition. Unfortunately, this serial is not a true repeater. It needed to be 29292929. However, it is still a cool serial.
G96153210a
8.95
Less than 11% of all the 1957 series Silver Certificates have the star by the serial no. If your Silver Certificate is in choice crisp condition it is worth $40.00. In circulated condition, it's worth about $5.00
It is worth ≈ $10
Those serial numbers are generally used by the Treasury to give them information about the bill. What's really needed to determine the value is the condition, the date on the bill, and the denomination.
Bills with this error can sell for anywhere from $100 to $200 depending on their condition and how far out of sync the two numbers are. Mismatched serial numbers can occur when one of the counters that prints the numbers gets stuck and doesn't keep in sync with the other one.
A silver certificate star-note would normally be worth around $5 or so, depending on how worn it is.
A star in the serial number of any bill, not just a silver certificate, means that the original bill bearing that serial number had a defect and was destroyed. Because bills are printed in large groups it's impractical to reprint specific serial numbers. Instead, a new set of serial numbers is started and a star is added to indicate that these notes are replacements. Collectors generally prefer star notes and it may make the bill be worth a bit more.
How much is a 1957a silver certificate worth?
About face value due to its condition.
About $9 - $10 if it is in uncirculated condition.