The story has been claimed by some experts as Britainâ€™s answer to the Roswell incident.
The remaining parts of the Silpho UFO have now been found In a plot worthy of The X-Files the metal object, shaped like a flying saucer with hieroglyphics inscribed on its base, was found by three men on Silpho Moor, near Scarborough, one night in November 1957.
One later paid Â£10 â€“ more than Â£200 in todayâ€™s money â€“ for the mysterious object that appeared just weeks after the Russians launched Sputnik into orbit around Earth.
But what became known as the Silpho Saucer vanished without trace soon after the finders cut it open in the town.
Photographs show the copper base of the object was inscribed with hieroglyphs that one of the men compared with Russian lettering.