The image shows three vintage United States $1 silver certificates from the Series 1957.  1957 Silver Certificates: These bills feature a distinct blue seal on the right side and blue serial numbers.  Historical Context: Unlike modern Federal Reserve Notes, these certificates were backed by silver bullion held in the Treasury.  Signatures: They bear the signatures of Ivy Baker Priest and Robert B. Anderson.  Value: Generally, circulated 1957 series $1 silver certificates are valued slightly above face value, often between $2 to $5, depending on their condition.