NED object is NGC 5506; Reference is 1986MNRAS.219..387U

   Figure 1. MERLIN maps of Seyfert galaxies. The circle in the top left hand
 corner of all the maps is the restoring beam used. (a) NGC 5506 at 408 MHz.
 Contours are plotted at 3, 6, 12, 24, 48 and 96 per cent of the peak
 brightness which is 184 mJy beam**(1). The restoring beam is 1.0 arcsec.