The World of Stereographs vintage 1977

The book in the image is "The World of Stereographs" by William C. Darrah. Originally published in 1977, this work is considered a definitive survey and guide to the history, geography, topics, and photographers associated with stereographs.
Key Information
Author: William C. Darrah, a professional botanist and geologist who became a leading expert on 19th-century photography.
Publication Year: 1977 (first edition). Reprint editions were published later, such as in 1997.
Content: The book provides an in-depth look at the development of stereography and includes two comprehensive checklists:
Names and locations of 3,500 North American stereographers.
A world register of 4,200 photographers with their countries and approximate dates of activity.
Significance: It is a seminal work and classic in the history of photography reference literature.
Format: The original and reprint editions were typically published as a hardcover book, often with a dust jacket.