A star in the serial number of any US bill, not just a silver certificate, indicates that it was printed to replace another bill that was damaged during printing. The star is a bookkeeping notation to denote a gap in the original sequence of bills' serial numbers.
"Star notes" are of interest to collectors. Depending on the bill's condition, denomination, and the number of replacements printed a star note can be worth anywhere from only a bit more than a comparable original bill up to very roughly 10 percent more.
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
There is no series of 1967 it's 1957, if it's a crisp star note value is $10.00. No star value is $5.00 if it's not crisp $1.25
There was no 1957 C series of $1 bills, only plain, A, and B. A star note from one of those three series might retail for around $5 depending on its condition.
About $3.
A silver certificate star-note would normally be worth around $5 or so, depending on how worn it is.
About $9 - $10 if it is in uncirculated condition.
if not a star note, then depending on condition, 30-100. if a star note, then 75-900.
Realistically, it's worth around $3.00.
The serial number generally doesn't affect the value, unless it's unusually low (00000065), or maybe a star note (12345678*). What's more important is the series (year) and condition. Assuming it's a one dollar silver certificate, any of the series 1957, '57A, or '57B notes generally sell for around $3.
About $25. If there is a star in the serial number, about $40.
1957 is a common series for $1 silver certificates. They're generally worth around 2 to 3 dollars, depending on condition.
You need to provide more information - date and series letter, condition, denomination.