NED object is NGC 4278; Reference is  1984ApJ...287...41W

   Fig. 14.- NGC 4278 at 1.5 GHz. (a) Total intensity. The peak is 470.3 mJy
 beam **(-1), the CI is 0.25 per cent of this peak, and contours at -3, -2, -1,
 1, 2, 3, 4, 5, 10, 20, 40, 80, 160, and 200 times this CI are plotted.