Antique 19th-century leather book containing fishing flies

From the collection of a Parisian fisherman and collector who was a close friend of Jack Hemingway (son of Ernest and avid fisherman), this exquisite 19th-century leather-bound book, crafted by the legendary Hardy Brothers Ltd, serves as both a practical fishing companion and a remarkable artifact of angling history. Crafted from rich, supple leather that has aged beautifully, the cover showcases intricate tooling, hinting at the craftsmanship of its maker. 
These flies, secured with gut glue—a traditional adhesive made from animal intestines—exhibit a range of colors and patterns, reflecting the diversity of aquatic life they were designed to imitate.
The pages, now gently yellowed with time, reveal the careful notes and annotations of a dedicated angler, providing insights into fishing techniques and local waters. This leather book is not merely a collection of fishing flies; it is a historical treasure that encapsulates the passion and tradition of 19th-century fishing.