A check and U.S. bank note processing device configured to process both checks and U.S. bank notes. The device comprises an input receptacle configured to receive checks and U.S. bank notes and an output receptacle. The device further comprises a transport mechanism configured to transport the checks and U.S. bank notes from the input receptacle past an image scanner. The image scanner is configured to obtain an image of each check and U.S. bank note transported past the image scanner. The device is configured to determine the serial numbers of U.S. bank notes transported past the image scanner. The device further comprises a memory configured to store the determined serial numbers of U.S. bank notes.