To provide a rough estimate, the LV book flint in leather may range from around $1,500 to $5,000 or even more. It's worth noting that prices can be affected by factors such as condition, availability, and collectors' demand.
To obtain the most accurate and up-to-date pricing information, it's best to check with reputable luxury retail stores, official Louis Vuitton boutiques, or trusted online platforms that deal in luxury goods.