The image displays a set of vintage United States $1 Silver Certificates, specifically from the Series 1957.  Blue Seal: These notes are recognized by their distinct blue Treasury seal, signifying they were once redeemable for silver coin or bullion on demand until 1963.  Series 1957: The bills are part of the Series 1957, which was the first series to feature the motto "In God We Trust" on the reverse side.  Condition: The notes appear to be circulated, which affects their collector value based on condition and specific serial numbers.