NED object is 4C +16.21; Reference is  1968MNRAS.138..259M

   FIG.12. 4C +16.21. Sketch map showing the positions of the two 4C sources,
 each double, which make up 3C 177. The 3C position is also shown. (See notes
 to Table II for a description of 4C 15.19 and Fig. 11 for map of 4C 16.21).