Motion of pulsar B1857−26, as the composite of the three images made for the pulsar following calibration with J1900−2602, a 7 mJy in‐beam calibrator. The lowest contour level is 0.5 mJy, with increasing steps of a factor 1.4. The resolution is 20 × 10 mas in position angle 0. The peak flux density at each epoch is: 1994, 1.4 mJy (top); 1995, 5.3 mJy (middle); 1996, 6.9 mJy (bottom).