The first images are layouts for a story titled "Menace From The Stars", published not too long after EC folded. The rest are from a pre-EC story titled "The Lost Lives of Laura Lansing", which in many ways seems to have anticipated the working method Williamson later employed on his EC stories. Only one of the sketches is by Krenkel, the other four (I believe) are Williamson's, but clearly inspired by his friend and mentor's style. Once again, it's amazing to see how much effort went to each panel Williamson drew. This, despite the fact so much of his effort was lost due to brutal printing, something he must surely been aware of.