This is an ORIGINAL John Deere JD 850 Crawler Bulldozer Tractor Parts Catalog Manual (Oct. 1985 printing, PC-1885, covers ALL 1978-85 models). This parts manual has super illustrations and exploded views as well as having in-depth parts identification information for these classic Deere crawler bulldozers (see pics). The condition of the cover is very good with light soiling.  The spline is tight and intact with NO splits.  This manual contains 600+ super clean pages and is in VERY GOOD overall condition.  FREE S & H. Thanks for viewing.............Triple K