The document you posted has been pointed out on LGF as another possibly forged. It turned up on at least one 'awol bush' website supposedly from an FOIA request by the 'awol bush' bunch, who are potential suspects in the CBS forgeries.
Note the SUPERSCRIPTING problem!!!
This document is just a "cover letter" for the "National Guard Documents" of President Bush. It was written "recently" to summarize President Bush National Guard service. It is not an old document and it is not a forgery.