This still is supposedly from the television show The Many Loves of Dobie Gillis, which aired on CBS between 1959 and 1963. I do not know the identity of the young lady in Robby's arms. At present, I have no more information on the still than this. As information is learned, it will be posted here, so please check back.
One can deduce from the state of the chest box that the photograph must have been taken prior to The Twilight Zone episode "The Brain Center At Whipple's," which aired 15 May 1964.
It is interesting that the torso is mounted upside down, a position it seems to have maintained for reasons unknown after The Invisible Boy.
Although a definitive pronouncement cannot be made on the basis of this photograph, it appears that the dome has a straight rather than a scalloped lower edge. If so, this is not the same dome that was used in The Invisible Boy.