We present the wide-field imaging and polarimetry at \nu = 20 ~ { } GHz of seven of the most extended , bright ( S _ { total } \geq 0.50 Jy ) , high-frequency selected radio sources in the southern sky with declinations \delta < -30 ^ { \circ } .
Accompanying the data are brief reviews of the literature for each source .
The results presented here aid in the statistical completeness of the Australia Telescope 20 GHz Survey ( AT20G ) Bright Source Sample ( Massardi et al . 57 ; Burke-Spolaor et al. , in prep ) .
The data is of crucial interest for future CMB missions as a collection of information about candidate calibrator sources .
We were able to obtain data for seven of the nine sources identified by our selection criteria .
We report that Pictor A is thus far the best extragalactic calibrator candidate for the Low Frequency Instrument ( LFI ) of the Planck ESA mission due to its high level of integrated polarized flux density ( \sim 0.50 \pm 0.06 Jy ) on a scale of 10 arcminutes .
Six out of the seven sources have a clearly detected compact radio core in our images , with either a null detection or less than 2 percent detection of polarised emission from the nuclei .
Most sources with detected jets have magnetic field alignments running in a longitudinal configuration , however PKS 1333-33 exhibits transverse fields and an orthogonal change in field geometry from nucleus to jets .