NED object is 3C 268.4; Reference is 1974MNRAS.169..477P Fig. 2. 3C 268.4. The position (V) of the variable 18 mag QSO may conincide with the the central radio component. Burbidge et al. (1971) note that this source lies only 3 arcmin from the galaxy NGC 4138, but the radio structure does not suggest a real association.