I think the photo is simply of the backside of the machine. Can tell by the presser foot and presser foot lever.
I agree that this is likely to be very valuable because of its pristine condition. Be sure you understand how to keep it this way! My mil gave me an old child's sewing machine that she had wrapped in plastic "to keep it in good condition". The moisure trapped by the plastic rusted it to the point where it has no commercial value anymore.