This directory contains an index.html file with links to E_lm and B_lm data from WMAP observations in the K and Q bands, denoted by superscripts K and Q, respectively. We also give E_lm and B_lm from numerical simulations of a simple dynamo at two different radii, 8kpc and 3kpc from the galactic center, denoted by superscripts 8kpc and 3kpc, respectively. The corresponding run directories and the idl plotting routines with secondary data for the other figures for the paper "Hemispheric handedness in the Galactic synchrotron polarization foreground" by Axel Brandenburg & Marcus Brueggen with the temporary URL http://norlx51.nordita.org/~brandenb/tmp/brueggen are also given.