One of the guys at FordFE.com says it's definitely a '69 Mustang partial vin, built at the dearborn rouge assembly plant. He further suggests:
"He could start by submitting the VIN to Scott at
http://www.428cobrajet.com
to see if it is a reported CJ Mustang. If Scott can't help then Kevin Marti can provide a full report on the car that it came from. It can only be a '69 Mustang based on the partial VIN he provided."
Hope that helps,
Chuck