Colt Challenger, .22 long rifle cal. automatic pistol.  Serial #66091C, mfg. 1953.  Good condition.  Seldom seen variant of the Woodsman with fixed sights and bottom magazine release. 4 ½” barrel has excellent bore.  Barrel and slide have 75% original blue with corrosion marks on left side. Frame has 85% original finish.  Colt brown plastic grips are very good with couple small dings.  Correct magazine.  Action works fine – a nice shooter!  C&R OK.