VINTAGE MARTIN HORN THAT NEEDS LOVE LOVING.  ALOT OF POSSIBILITIES HERE IF YOU WANT A RESTORATION PROJECT.  MARTIN HANDCRAFT Bb TRUMPET WITH RARE SET OF TUNING SLIDES.  THE POSITIVE.  ALL SLIDES MOVE AND VALVES WORK.  THE THIRD VALVE IS ABIT SLUGGISH.  THE REPAIRS THAT I KNOW OF HAVE TO DO WITH THE SECOND VALVE SLIDE NEEDS REPAIR AS WELL AS THE ROTARY VALVE SLIDE NEEDS REPAIR AS WELL.  WHAT MAKES THIS HORN UNIQUE IS THE EXTRA SET OF TUNING SLIDES.  HARD TO FINE.  NOT TO MENTION WHAT LOOKS LIKE THE ORIGINAL CASE.  THE CASE DOES SHOWS MUCH WEAR.  PLEASE STUDY THE PICTURES.  THEY ARE APART OF THE DESCRIPTION.  I WILL LOVE TO ANSWER ANY QUESTIONS ABOUT THIS HORN.  ALSO I HAVE NO KNOWLEDGE OF THE HISTORY OF THIS HORN.  I APPRECIATE YOU VIEWING MY ADD.