Vintage "Mapback" Mary Roberts Rinehart - The Great Mistake 1950s

Super cool vintage book from the "American Agatha Christie" Originally published 1940 Collectible publication from Dell's "Mapback" series - a visualization guide to the crime printed on the back undated, based on this run of books very like 1950 or sometime that decade. 🔍 Condition: Good vintage condition, Clean and crisp cover and back page some stiffness to binding, light yellowing Please see pics and video for condition Non-smoking, no pet household Message w questions :) 💠 New to Poshmark? Shopping as a Guest? Sign up with my code LYDIAGIAGUARO to get 15$ off your first purchase 💠 Tags: Mystery, murder, retro, golden age, thriller, whodunnit, puzzle