1900 Douglas DSTMulti-Engine Piston Aircraft • Mill Valley, CA, USA

This 1900 Douglas DST (registration A66666B, serial number SNO666) is listed as a test entry with minimal technical details provided. The multi-engine piston aircraft is classified as an antique/classic airframe currently located in Mill Valley, California. As a test listing, no substantive information about airframe hours, maintenance history, avionics, or operational status is available. The $10,000,000 price point suggests this may be a placeholder for a rare vintage aircraft, but prospective buyers would need to contact seller Nathan Queiroz for verification of any actual specifications beyond the basic model identification.