One of the First Helicopter Engines in America, by Emile Berliner…In An Old Barn At 1458 Columbia Road, NW, Washington, D.C.

The Gyrocopter Wasn’t All That Appealed To Henry Berliner…Emile Berliner’s Helicopter, Brightwood, Washington, D.C.

We Hope the Gyro Engine Won’t Take Flight from Columbia Heights, the Gyro Motor Company, 774 Girard Street, NW, Washington DC