Four Color #322 is Porky Pig (with Bugs Bunny). I was attracted to the Science Fiction cover and that I remember this book from the original ‘ole man’s collection.  It was published on March 1951 and art penciled by Ralph Heimdahl. Heimdahl is most known as artist of the ‘Bugs Bunny’ daily newspaper strip which he started in 1948 and drew until the 1970s.  Porky Pig was ranked number 47 on TV Guide’s list of top 50 cartoon characters, originally developed in 1935 by Warner Bros. as part of the Looney Tunes and Merrie Melodies series of cartoons (also its own comic series from Dell).