The first image file is unreadable (not a valid image format). I can transcribe the second image: --- Sir                                Middletown Aug^t 21^st 1797 enclosed is a Muster Roll of the Recruits at this post, for the month of Aug^t 1797. No alteration since last Return I AM Sir your Obedient Humble. Serv^t Edward Miller Cap^t. The Hon^ble. James McHenry Sec^y of War --- The first file (`63992097a...`) has unrecognized bytes (hex `01 04 00 00`) — likely a TIFF or corrupted file that the image reader can't decode. If that's the muster roll enclosure referenced in the letter, it would need to be re-exported as JPEG or PNG before I can transcribe it.