![Bifocals; a History of the Scientific and Mechanical Development of the Double-Vision Lens from the Time of Franklin with Chapters on the Prescription of Bifocals and Their Use 1923 [Leather Bound]](https://m.media-amazon.com/images/I/31Tw+EwmIlL._SL500_.jpg)
Bifocals; a History of the Scientific and Mechanical Development of the Double-Vision Lens from the Time of Franklin with Chapters on the Prescription of Bifocals and Their Use 1923 [Leather Bound]
Bifocals: A History delves into the scientific and mechanical evolution of the double-vision lens from Franklin's time through 1923. With chapters on prescription and usage, this leather-bound classic offers a comprehensive look at optical history, bound for lasting preservation.
About This Book
This 1923 publication traces the development of bifocals, starting from the time of Benjamin Franklin. It covers the scientific and mechanical advancements that shaped the double-vision lens over centuries.
The book includes dedicated chapters on the prescription of bifocals, offering insights into their practical application. It also discusses their everyday use, providing historical context for this optical innovation.
Bound in original leather with golden leaf printing on the spine, the volume features sewing binding for enhanced durability. This edition preserves the title elegantly on the spine, ensuring longevity for readers and collectors alike.
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