Archaeologists have always insisted that ancient lenses never existed.
Robert Temple's work began when he discovered an ancient artefact in the British Museum, believed to be rock crystal.
He proved it had been ground to form a lens. This was the beginning of a real-life detective story.
- Format: Paperback / softback
- Pages: 688 pages
- Publisher: Cornerstone
- Publication Date: 01/02/2001
- Category: General & world history
- ISBN: 9780099256793