Walter Niedermayr HG Merz Station Z Author:Andrzej Szczypiorski, Walter Niedermayr, HG Merz Featuring a prologue by Polish author and former concentration camp prisoner Andrzej Szczypiorski and photographs by Walter Niedermayr, this volume presents H.G. Merz's award-winning Sachsenhausen Holocaust memorial, which preserves the "Station Z" crematorium.