NED object is NGC 7448; Reference is 1985A&AS...60..293H Fig. 1l. NGC7548 Contours plotted (mJy per beam) -1.5, 1.5, 2.5 to 17.5 in steps of 2.5 -- HPBW (arcsec) 28 -- r.m.s. noise (mJy per beam) 0.6 -- kpc per arcmin 9.4.