Reduced imaging data of HD 172555 from all six observing runs arranged from top to the bottom with the Stokes I (left column), Q (middle column) and U (right column) data. Each run was carried out with fixed sky orientation on the CCD detector with PA offset indicated in parenthesis. The highest quality observations are in rows two and four. To get north up and east to the left, each image should be rotated by the PA offset counterclockwise and the True North offset of the ZIMPOL should be taken into account. The yellow lines in the Q and U images show the position of disk major axis.