The Houghton Ensign Autospeed is a British-made plate camera produced under the Ensign brand by the London firm of Houghton-Butcher. It is an early-twentieth-century focal-plane plate camera aimed at advanced amateurs of its era.

Auction data for the Ensign Autospeed is extremely thin: a single UK saleroom hammer result of £129 (Christie's, 2001) is the only verified data point on file, so any current value estimate is indicative rather than firm. As of today, fresh hammer prices at UK auction would be needed to confirm what a clean example sells for, and condition of the focal-plane shutter cloth is likely to be the dominant factor in what one is worth.