Source:  borne.thors on eBay.de

Although this horn is listed under arcylic key guards, it has obviously had its guards replaced. 

The original key guards were made of Lucite. You can see that by the location of the old solder marks. 

  • Right Side Neck Attached Right Side Neck Attached
  • Left Side Neck Attached Left Side Neck Attached
  • In Case with Neck In Case with Neck
  • Case Case
  • Bell Engraving Bell Engraving
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If you want to change how many album pictures per page, use CTRL+ and CTRL- (Command + and Command - if you have a Mac).  80% looks great on my 4K monitor.