Fractional polarization and residual RM (i.e., corrected for Galactic Faraday rotation) images the western relic of 8C0212 (source C). In the left-hand panel, gray vectors show the magnetic field direction and their length is proportional to the fractional polarization value. Black contours are [−3, 3, 12, 48, 192]σ_I of the high resolution total intensity image while the gray contour shows the 3σ_I of the low resolution total intensity image used to compute the fractional polarization. Only pixels above the are shown. Rms noise levels and beam sizes are listed in Table 3.