This is a real nice original parts book for the JI Case 15-27 crossmotor tractors.  It is fresh from an old Case dealership where it lived high and dry for decades.  It is in good condition with some general wear and soiling.  It measures about 5 3/4 x 8 1/2 inches with 38 pages. It is heavily illustrated with all of the parts including part numbers and would be a great addition to your early agricultural library especially if you have a Case 15-27 tractor.  The pictures tell the story.  I can be reached at 262 573 193 1 if you'd like to talk about it.  Good Luck.