NED object is NGC 4272; Reference is  1986MNRAS.219..575C

   Figure 3. 5-km maps of sample galaxies at 2.7GHz. Stokes parameters I-Q are
 shown at a resolution of 3.7 X 3.7 (cosec {delta})  arcsec squared. Contour
 levels are: (c) NGC 4272: -3, -1.5, 1.5, 3, 4, 5, 6, 9, ...,18 mJy per beam.
 Crosses mark optical nuclei and the HPBW's are indicated by L-shapes.