I am potentially interested, depending on price. The information below may help others to express an interest.
According to https://www.amazon.de/-/en/Atlas-Planetarischen-Nebel-Objekte-zwischen/dp/3949370153/ the German edition of the first volume is €69.90 with shipping to Spain of €5.77.
At today’s spot rate the sterling price would be £58.58.
Paul