ONE CHALLENGER MT900E WHEEL TRACTOR,AND ONE MT800E TRACk TRACTOR SALES BROCHUREs. ONE DATED 2015 THE OTHER 2017, ONE HAS 23 PAGES OTHER HAS 19 , BOTH EXCELLENT CONDITION, NEVER USED,  NICE..... REAL NICE, HEAVY HORSE POWER TRACTORS.   dry storage. smoke free,  Thanks for your time and interest.