THE MOVING FINGER & MURDER IN RETROSPECT                by Agatha Christie                                                                      Avon Books & Dell Books, 1st U.S. Paperback Printings, 1948  Condition: Good & Good Plus                                                                                                                                                            The first U.S. paperback editions of two popular Christie mysteries (the 1st a Miss Marple, the 2nd a Hercule Poirot).  FINGER has a spine lean,  reading creases, 2 tiny corner clips, a short closed tear at the spine foot, bits of other exterior  wear, toned pages and a small name stamped on title page.  MURDER (also known as FIVE LITTLE PIGS) is a Dell mapback.  There is a tear at the spine top, wear along spine, scraped spots at spine foot & one corner, some short cover creasing, modest wear on extremities, light page toning & a light store stamp on the ffep.  But the spine is straight, and both books have firm bindings & no writing.