VLBI images for three representative sources in the sample. Left: 7 mm HSA image of 3C 452 (FRII-HEG). The beam size and position angle are 0.29 × 0.16 mas, −10°. Center: 7 mm HSA image of 3C 31 (FRI-LEG). The beam size and position angle are 0.48 × 0.18 mas, −16°. Right: 1 cm HSA image of NGC 4278 (compact LEG). The beam size and position angle are 0.61 × 0.23 mas, −8°. Contours start at −3σ and increase by a factor of two until allowed by the peak intensity. These maps were produced with uniform weighting in the case of 3C 452 and NGC 4278, and with natural weighting in the case of 3C 31, which better highlights the faint limb-brightened structure of this jet. The full set of images is shown in Appendix A.