This piston-engined Sikorsky HSS-1N (150768) was sold new to Germany and served served with the military (Navy?) wearing the markings QK-580, QW-408, 8083 before it was retired and sold to the to US where it flew commercially as N90807, N97AA and N58HU (data source rotorspot.nl). In June 2015, it migrated to the northwest United States to join ADF Helicopters' large cherry drying S-58 fleet based in Brewster, Washington.