NED object is NGC 5921; Reference is 1985A&AS...60..293H Fig. 1j. NGC5921 Contours plotted (mJy per beam) -1, 1, to 4 in steps of 1 -- HPBW (arcsec) 28 -- r.m.s. noise (mJy per beam) 0.4 -- kpc per arcmin 5.8.