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Percival P. 50 Prince 2A G-ALWHPercival P.50 Prince 2A G-ALWH (msn P50-10), of the Sperry Gyroscope Co. Date: circa 1955
Plans and views of magnetic compasses, including one nautical compass set on a gyroscope. Copperplate engraving by Wilson Lowry after a drawing by John Farey from Abraham Rees Cyclopedia or Universal
Percival P. 50 Prince series 2 G-ALWHPercival P.50 Prince series 2 G-ALWH (msn P.50-10) of the Sperry Gyroscope Company Ltd
Close-Up of 60HP Env Aero-Engine in Ca Moreings Voisin ?Close-Up of 60HP Env Aero-Engine in Ca Moreings Voisin Biplane Showing the Gyroscopes Mounted over the Engine Date: 1909
Avro Anson 19 G-AHXM of the Sperry Gyroscope CompanyAvro Anson 19, G-AHXM, of the Sperry Gyroscope Company
A Grand Finish. Racing at Newmarket, 1939Gyroscope, ridden by P.Maher just pipping His Highness to the post during the Cambridgeshire Class I race at Newmarket in 1939