If anyone is still looking for this, I got one from "Der sockelshop" in Germany a couple of weeks ago. They sill seem to have them in stock. Both 1:32 and 1:48.And yes, its a true gem, and a huge inprovement over the Roden version.https://www.dersockelshop.de/copper-state-models/csme32005/wwi-aero-engine---siemens-halske-sh.iii-160-h.p.--/-1:32/Mikael