The lookup may take a while, as they are done in batches when time allows. The hive mind here can tell you more, but there is little we can tell from just the back of the neck.
You can safely assume it has a mahogany back, an all-maple set neck with an ebony board, volume balance bass and treble controls, 34" scale. Do you have other pics?
Can you check the serial number again? The S must be a number.