Last winter I noticed one sided 22° halo on ice surface ( 1 ). This winter there has been a couple of more cases with varying degree of one-sidedness. The displays seem to be a rule on even surfaces, either on plain ice or snow that wind has swept hard. The one above was seen today on lake Näsijärvi ice. It was visible on a patch of hardened snow. No matter where I moved, the asymmetry stuck.