Vintage 1961 Mary Roberts Rinehart - Episode of the Wandering Knife

Cool vintage mystery from American authour Mary Roberts Rinehart Sticker and inscription show this book to have been distributed to US forces member/attache stationed in Helsinki Good vintage condition - some creasing and yellowing typical of age but structurally sound Dell 1961 printing - cover art by Victor Kalin Non-smoking, no pet household Message w questions :)