NED object is MRK 0006; 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. (c) Mkn 6 at 1666 MHz.
 Contours are plotted at -4, 4, 8, 12, 16 ,20, 24, 30, 40, 50, 60, 70, 80 and
 90 per cent of the peak brightness which is 43 mJy beam**(1). The restoring
 beam is 0.25 arcsec.